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Updated on: 01 May 2021, 03:45
100 Hardest Problem Solving Questions (Apr 1st, 2021 - May 1st, 2021)
Are you familiar with the GMAT Club's timer?We have pulled timer results from our database and analyzed every question in the forum. Based on those results, we have compiled a list of the hardest questions in each of the question forums we have. Below I am presenting to you the top 100 questions from PS forum.
Updated on: 01 May 2021, 03:45
100 Easiest Problem Solving Questions (Apr 1st, 2021 - May 1st, 2021)
Are you familiar with the GMAT Club's timer?We have pulled timer results from our database and analyzed every question in the forum. Based on those results, we have compiled a list of the easiest questions in each of the question forums we have. Below I am presenting to you the top 100 questions from PS forum.| Problem Solving (PS) | ||
| Rank | Title | Topics |
| 1 | For which of the following values of n is (100+n)/n NOT an | Difficulty: Sub-600 Level, Arithmetic, Divisibility/Multiples/Factors, Number Properties, Source: Official Guide, Source: OG 2015, Source: OG 12, Source: OG 11 |
| 2 | Which of the following is equivalent to the pair of | Difficulty: Sub-600 Level, Inequalities, Source: GMAT Paper Tests, Source: Official Guide, Source: OG 2020, Source: OG 2019, Source: OG 2018, Source: OG 2017, Source: OG 2016, Source: OG 2015, Source: OG 12 |
| 3 | The price of a coat in a certain store is $500. If the price of the co | Difficulty: Sub-600 Level, Percent and Interest Problems, Source: Official Guide, Source: OG 2020, Source: OG 2019, Source: OG 2018, Source: OG 2017, Source: OG 2016 |
| 4 | If n is an integer, which of the following must be even? | Difficulty: Sub-600 Level, Must or Could be True Questions, Number Properties, Source: GMAT Paper Tests, Source: Official Guide, Source: OG 2018, Source: OG 2017, Source: OG 2016, Source: OG 2015, Source: OG 12, Source: OG 11 |
| 5 | On 3 sales John has received commissions of $240, $80, and $110, and | Difficulty: Sub-600 Level, Word Problems, Source: GMAT Paper Tests, Source: Official Guide, Source: OG 10, Source: Quant Review 2nd, Source: Quant Review 1st |
| 6 | If it is assumed that 60 percent of those who receive a questionnaire | Difficulty: Sub-600 Level, Percent and Interest Problems, Source: Official Guide, Source: OG 2019, Source: OG 2018, Source: OG 2017, Source: OG 2016 |
| 7 | A bakery opened yesterday with its daily supply of 40 dozen | Difficulty: Sub-600 Level, Word Problems, Source: Official Guide, Source: OG 2017, Source: OG 2016, Source: OG 2015, Source: OG 12, Source: OG 11 |
| 8 | During a trip that they took together, Carmen, Juan, Maria, a | Difficulty: Sub-600 Level, Statistics and Sets Problems, Source: Official Guide, Source: OG 2020, Source: OG 2019 |
| 9 | Working at a constant rate, a copy machine makes 20 copies of a one-pa | Difficulty: Sub-600 Level, Work/Rate Problems, Source: Official Guide, Source: Quant Review 2020, Source: Quant Review 2019 |
| 10 | If the population of a certain country increases at the rate | Difficulty: Sub-600 Level, Word Problems, Source: Official Guide, Source: OG 10 |
| 11 | If x = -1, then -(x^4 + x^3 + x^2 + x) = | Difficulty: Sub-600 Level, Algebra, Arithmetic, Source: Official Guide, Source: OG 10, Source: Quant Review 2nd, Source: Quant Review 1st |
| 12 | In the equation above, k is a constant. If y = 17 when x = 2 | Difficulty: Sub-600 Level, Algebra, Source: GMAT Paper Tests, Source: Official Guide, Source: OG 2018, Source: OG 2017, Source: OG 2016, Source: OG 2015, Source: OG 12 |
| 13 | The number 2 - 0.5 is how many times the number 1 - 0.5? | Difficulty: Sub-600 Level, Algebra, Source: Official Guide, Source: OG 10, Source: Quant Review 2018, Source: Quant Review 2017, Source: Quant Review 2016, Source: Quant Review 2nd, Source: Quant Review 1st |
| 14 | The sum S of the first n consecutive positive even integers is given | Difficulty: Sub-600 Level, Arithmetic, Source: Official Guide, Source: Quant Review 2020, Source: Quant Review 2019 |
| 15 | Rectangular Floors X and Y have equal area. If Floor X is 12 | Difficulty: Sub-600 Level, Geometry, Source: Official Guide, Source: OG 2015, Source: OG 12, Source: OG 11 |
| 16 | The ratio 2 to 1/3 is equal to the ratio | Difficulty: Sub-600 Level, Fractions/Ratios/Decimals, Source: Official Guide, Source: OG 2017, Source: OG 2016, Source: OG 2015, Source: OG 12, Source: OG 11 |
| 17 | If (7^(3/4))^n = 7, what is the value of n? | Difficulty: Sub-600 Level, Algebra, Exponents/Powers, Source: Official Guide, Source: OG 10, Source: Quant Review 1st |
| 18 | The table shows a summary of the ticket sales from four performances o | Difficulty: Sub-600 Level, Arithmetic, Graphs and Illustrations, Source: Official Guide, Source: OG 2020, Source: OG 2019 |
| 19 | If x is negative and y is positive, which of the following must be | Difficulty: Sub-600 Level, Number Properties, Source: Princeton Review |
| 20 | If 2/(1+2/y)=1, then y = | Difficulty: Sub-600 Level, Arithmetic, Source: Official Guide, Source: OG 2015, Source: OG 12, Source: OG 11, Source: OG 10 |
| 21 | What number when multiplied by 4/7 yields 6/7 as the result? | Difficulty: Sub-600 Level, Arithmetic, Source: Official Guide, Source: OG 10, Source: Quant Review 2016, Source: Quant Review 2nd, Source: Quant Review 1st |
| 22 | Each week, a clothing salesperson receives a commission equal | Difficulty: Sub-600 Level, Word Problems, Source: Official Guide, Source: OG 2020, Source: OG 2019 |
| 23 | Kelly and Chris packed several boxes with books. If Chris packed 60 pe | Difficulty: Sub-600 Level, Fractions/Ratios/Decimals, Source: GMAT Paper Tests, Source: Official Guide, Source: OG 12, Source: OG 11, Source: OG 10 |
| 24 | (1/2+1/3)/(1/4) = | Difficulty: Sub-600 Level, Arithmetic, Fractions/Ratios/Decimals, Source: Official Guide, Source: OG 10, Source: Quant Review 1st |
| 25 | If n is a prime number greater than 3, what is the remainder when n^2 | Difficulty: Sub-600 Level, Remainders, Source: GMAT Paper Tests, Source: Official Guide, Source: OG 2018, Source: OG 2017, Source: OG 2016, Source: OG 2015, Source: OG 12 |
| 26 | What is the value of x^2yz − xyz^2, if x = − 2, y = 1, and z = 3? | Difficulty: Sub-600 Level, Algebra, Source: Official Guide, Source: Quant Review 2020, Source: Quant Review 2019, Source: Quant Review 2018, Source: Quant Review 2017, Source: Quant Review 2016 |
| 27 | If |ab| > ab, which of the following must be true? | Difficulty: Sub-600 Level, Inequalities, Number Properties, Source: Manhattan GMAT |
| 28 | A rectangular floor that measures 8 meters by 10 meters is to be cover | Difficulty: Sub-600 Level, Geometry, Source: Official Guide, Source: OG 2019, Source: OG 2018, Source: OG 2017, Source: OG 2016 |
| 29 | If Albert can travel 200 miles in 4 hours, how many hours will it take | Difficulty: Sub-600 Level, Distance/Rate Problems, Source: Princeton Review |
| 30 | For which of the following x is |x|+x>0 ? | Difficulty: Sub-600 Level, Absolute Values/Modulus, Inequalities, Source: Math Revolution |
| 31 | For which of the following values of s is (50+s)s an integer? | Difficulty: Sub-600 Level, Arithmetic, Number Properties, Source: Veritas Prep |
| 32 | In the figure above, what is the ratio of the measure of angle B to | Difficulty: Sub-600 Level, Geometry, Source: Official Guide, Source: OG 2020, Source: OG 2019, Source: OG 2018, Source: OG 2017, Source: OG 2016 |
| 33 | If x + y = 7 and x – y = 3, then x^2 - y^2 = | Difficulty: Sub-600 Level, Algebra, Source: Manhattan GMAT |
| 34 | In the figure above, the coordinates of point V are | Difficulty: Sub-600 Level, Coordinate Geometry, Source: Official Guide, Source: OG 2015, Source: OG 12, Source: OG 11, Source: OG 10 |
| 35 | The product P of two prime numbers is between 9 and 55. If one of the | Difficulty: Sub-600 Level, Number Properties, Source: GMAT Paper Tests, Source: GMAT Prep |
| 36 | What is the median of the numbers shown? | Difficulty: Sub-600 Level, Statistics and Sets Problems, Source: Official Guide, Source: OG 2020, Source: OG 2019 |
| 37 | Bob drives at an average rate of 50 mph from Berkeley to Los Angeles, | Difficulty: Sub-600 Level, Distance/Rate Problems, Source: Magoosh |
| 38 | 150 is what percent of 30 ? | Difficulty: Sub-600 Level, Percent and Interest Problems, Source: Official Guide, Source: OG 2017, Source: OG 2016, Source: OG 2015, Source: OG 12, Source: OG 11 |
| 39 | What is 45 percent of 7/12 of 240 ? | Difficulty: Sub-600 Level, Arithmetic, Percent and Interest Problems, Source: Official Guide, Source: OG 10 |
| 40 | A certain restaurant that regularly advertises through the mail has 1, | Difficulty: Sub-600 Level, Arithmetic, Word Problems, Source: Official Guide, Source: OG 2020, Source: OG 2019 |
| 41 | 1/3 +1/2 - 5/6 + 1/5 + 1/4 - 9/20 = | Difficulty: Sub-600 Level, Arithmetic, Source: Official Guide, Source: OG 2019, Source: OG 2018, Source: OG 2017, Source: OG 2016 |
| 42 | If m is an integer such that (-2)^2m = 2^{9 - m}, then m= | Difficulty: Sub-600 Level, Exponents/Powers, Source: Official Guide, Source: OG 10, Source: Quant Review 2nd, Source: Quant Review 1st |
| 43 | Company C produces toy trucks at a cost of $5.00 each for the first 10 | Difficulty: Sub-600 Level, Word Problems, Source: Official Guide, Source: Quant Review 2020, Source: Quant Review 2019, Source: Quant Review 2018, Source: Quant Review 2017, Source: Quant Review 2016 |
| 44 | 0.1 + 0.1^2 + 0.1^3 = | Difficulty: Sub-600 Level, Arithmetic, Exponents/Powers, Source: Official Guide, Source: OG 2017, Source: OG 2016, Source: OG 2015, Source: OG 12, Source: OG 11 |
| 45 | Coins are dropped into a toll box so that the box is being | Difficulty: Sub-600 Level, Geometry, Work/Rate Problems, Source: Official Guide, Source: OG 10 |
| 46 | In the xy-coordinate plane, if the point (0,2) lies on the graph of th | Difficulty: Sub-600 Level, Coordinate Geometry, Source: Official Guide, Source: OG 2021, Source: OG 2020, Source: OG 2019 |
| 47 | If x is an even integer, which of the following is an odd integer? | Difficulty: Sub-600 Level, Number Properties, Source: Official Guide [Pre-2000], Source: OG 1988 |
| 48 | Which of the following is equal to x^18 for all positive values of x ? | Difficulty: Sub-600 Level, Exponents/Powers, Source: GMAT Prep, Source: Official Guide, Source: OG 10, Source: Quant Review 1st |
| 49 | If the sum of 5, 8, 12, and 15 is equal to the sum of 3, 4, x, and x + | Difficulty: Sub-600 Level, Algebra, Source: GMAT Prep, Source: Official Guide, Source: EA, Source: OG 12 |
| 50 | If (-5)^(4x) = 5^(9 + x) and x is an integer, what is the value of x ? | Difficulty: Sub-600 Level, Exponents/Powers, Source: Grockit |
| 51 | If |A| > 19, which of the following could NOT be equal to A ? | Difficulty: Sub-600 Level, Absolute Values/Modulus, Inequalities, Source: Manhattan GMAT |
| 52 | If a mixture is 3⁄7 alcohol by volume and 4⁄7 water by volume, what is | Difficulty: Sub-600 Level, Fractions/Ratios/Decimals, Mixture Problems, Source: Official Guide |
| 53 | If p is an even integer and q is an odd integer, which of the followin | Difficulty: Sub-600 Level, Must or Could be True Questions, Number Properties, Source: GMAT Paper Tests, Source: Official Guide, Source: OG 12, Source: OG 11, Source: OG 10 |
| 54 | If x is a positive integer and 4^x – 3 = y, which of the following CAN | Difficulty: Sub-600 Level, Algebra, Exponents/Powers, Source: Official Guide, Source: OG 2020, Source: OG 2019 |
| 55 | A bag contains 7 red, 9 yellow, and 3 black balls. If a ball is pick | Difficulty: Sub-600 Level, Combinations, Source: Other - Please specify |
| 56 | If Mario was 32 years old 8 years ago, how old was he x year | Difficulty: Sub-600 Level, Arithmetic, Source: Official Guide, Source: OG 10, Source: Quant Review 2018, Source: Quant Review 2017, Source: Quant Review 2016, Source: Quant Review 2nd, Source: Quant Review 1st |
| 57 | A certain machine produces 1,000 units of product P per hour. Working | Difficulty: Sub-600 Level, Work/Rate Problems, Source: GMAT Prep |
| 58 | If a rectangular photograph that Is 10 inches wide by 15 inches long I | Difficulty: Sub-600 Level, Geometry, Word Problems, Source: Official Guide, Source: OG 10 |
| 59 | While a family was away on vacation, they paid a neighborhood boy $11 | Difficulty: Sub-600 Level, Word Problems, Source: Official Guide, Source: OG 2020, Source: OG 2019 |
| 60 | John is traveling to a meeting that is 28 miles away. He nee | Difficulty: Sub-600 Level, Distance/Rate Problems, Source: Other - Please specify |
| 61 | x=(1/4)sv^2 In the formula shown, if x/s = 25 and v > 0, what is the v | Difficulty: Sub-600 Level, Algebra, Source: GMAT Prep |
| 62 | The ratio of the length to the width of a rectangular advert | Difficulty: Sub-600 Level, Fractions/Ratios/Decimals, Source: Official Guide, Source: OG 2017, Source: OG 2016, Source: OG 2015, Source: OG 12, Source: OG 11 |
| 63 | |−4|(|−20| − |5|) = | Difficulty: Sub-600 Level, Absolute Values/Modulus, Arithmetic, Source: Official Guide, Source: Quant Review 2020, Source: Quant Review 2019 |
| 64 | A fruit-salad mixture consists of apples, peaches, and grape | Difficulty: Sub-600 Level, Fractions/Ratios/Decimals, Word Problems, Source: Official Guide, Source: OG 2015, Source: OG 12, Source: OG 11, Source: OG 10 |
| 65 | What is 3/5 of 5/8 of 2/3? | Difficulty: Sub-600 Level, Arithmetic, Source: Manhattan GMAT |
| 66 | A souvenir vendor purchased 1,000 shirts for a special event at a pric | Difficulty: Sub-600 Level, Word Problems, Source: Official Guide, Source: Quant Review 2020, Source: Quant Review 2019 |
| 67 | 1/(1+1/3)-1/(1+1/2) | Difficulty: Sub-600 Level, Arithmetic, Source: GMAT Paper Tests, Source: Official Guide, Source: OG 2018, Source: OG 2017, Source: OG 2016, Source: OG 2015, Source: OG 12 |
| 68 | If x + 5y = 16 and x = -3y | Difficulty: Sub-600 Level, Algebra, Source: Official Guide, Source: OG 11, Source: OG 10 |
| 69 | In the Johnsons' monthly budget, the dollar amounts allocate | Difficulty: Sub-600 Level, Fractions/Ratios/Decimals, Source: Official Guide, Source: OG 2018, Source: OG 2017, Source: OG 2016, Source: OG 2015, Source: OG 12, Source: OG 11 |
| 70 | A certain builder is selling five homes for the following | Difficulty: Sub-600 Level, Statistics and Sets Problems, Source: GMAT Prep |
| 71 | The amounts of time that three secretaries worked on a | Difficulty: Sub-600 Level, Fractions/Ratios/Decimals, Source: Official Guide, Source: OG 10 |
| 72 | 30^10/150^5 = ? | Difficulty: Sub-600 Level, Exponents/Powers, Source: Math Revolution |
| 73 | The product X of two prime numbers is between 17 and 55. If | Difficulty: Sub-600 Level, Number Properties, Source: GMAT Pill |
| 74 | A retail appliance store priced a video recorder at 20 percent above | Difficulty: Sub-600 Level, Percent and Interest Problems, Source: GMAT Paper Tests, Source: Official Guide, Source: OG 11 |
| 75 | In the figure shown, what is the value of x ? | Difficulty: Sub-600 Level, Geometry, Source: Official Guide, Source: OG 2020, Source: OG 2019 |
| 76 | A technician makes a round-trip to and from a certain service center b | Difficulty: Sub-600 Level, Percent and Interest Problems, Word Problems, Source: Official Guide, Source: OG 2020, Source: OG 2019, Source: OG 2018, Source: OG 2017, Source: OG 2016 |
| 77 | If p/q < 1, and p and q are positive integers, which of the | Difficulty: Sub-600 Level, Fractions/Ratios/Decimals, Inequalities, Must or Could be True Questions, Number Properties, Source: Official Guide, Source: OG 2020, Source: OG 2019, Source: OG 2018, Source: OG 2017, Source: OG 2016, Source: OG 2015, Source: OG 12, Source: OG 11 |
| 78 | A gym class can be divided into 8 teams with an equal number | Difficulty: Sub-600 Level, Divisibility/Multiples/Factors, Source: Official Guide, Source: OG 2018, Source: OG 2017, Source: OG 2016, Source: OG 2015, Source: OG 12, Source: OG 11 |
| 79 | Of the final grades received by the students in a certain | Difficulty: Sub-600 Level, Fractions/Ratios/Decimals, Source: Official Guide, Source: OG 2016, Source: OG 2015, Source: OG 12, Source: OG 11, Source: OG 10 |
| 80 | The 180 students in a group are to be seated in rows so that | Difficulty: Sub-600 Level, Divisibility/Multiples/Factors, Source: GMAT Prep |
| 81 | If s > 0 and (r/s)^1/2=s, what what is r in terms of s ? | Difficulty: Sub-600 Level, Algebra, Source: Official Guide, Source: OG 2020, Source: OG 2019, Source: OG 2018, Source: OG 2017, Source: OG 2016, Source: OG 2015, Source: OG 12, Source: OG 11 |
| 82 | Running at the same rate, 8 identical machines can produce 560 papercl | Difficulty: Sub-600 Level, Work/Rate Problems, Source: Magoosh |
| 83 | If the average (arithmetic mean) of x + 2, x + 4, and x + 6 is 0 | Difficulty: Sub-600 Level, Arithmetic, Source: Grockit |
| 84 | As a salesperson, Phyllis can choose one of two methods of annual paym | Difficulty: Sub-600 Level, Word Problems, Source: GMAT Paper Tests, Source: Official Guide, Source: OG 2022, Source: OG 10, Source: Quant Review 2017, Source: Quant Review 2016, Source: Quant Review 2nd, Source: Quant Review 1st |
| 85 | Guadalupe owns 2 rectangular tracts of land. One is 300 m by 500 m and | Difficulty: Sub-600 Level, Geometry, Source: Official Guide, Source: Quant Review 2020, Source: Quant Review 2019, Source: Quant Review 2018, Source: Quant Review 2017 |
| 86 | (2+2 * sqrt (6) )/2 | Difficulty: Sub-600 Level, Arithmetic, Fractions/Ratios/Decimals, Roots, Source: GMAT Paper Tests, Source: Official Guide, Source: OG 10, Source: Quant Review 2018, Source: Quant Review 2017, Source: Quant Review 2016, Source: Quant Review 2nd, Source: Quant Review 1st |
| 87 | Scott takes a trip and drives 6 hours from Town X to Town Z at a rate | Difficulty: Sub-600 Level, Distance/Rate Problems, Source: Manhattan GMAT |
| 88 | If the figure provided is drawn to scale, which of the following point | Difficulty: Sub-600 Level, Absolute Values/Modulus, Source: Grockit |
| 89 | Three business partners, Q, R, and S, agree to divide their | Difficulty: Sub-600 Level, Fractions/Ratios/Decimals, Word Problems, Source: Official Guide, Source: OG 10, Source: Quant Review 2018, Source: Quant Review 2017, Source: Quant Review 2nd, Source: Quant Review 1st |
| 90 | If x is 20 percent greater than 88, then x = | Difficulty: Sub-600 Level, Percent and Interest Problems, Source: Other - Please specify |
| 91 | A rectangular garden is to be twice as long as it is wide. | Difficulty: Sub-600 Level, Geometry, Source: Official Guide, Source: OG 2018, Source: OG 2017, Source: OG 2016, Source: OG 2015 |
| 92 | Running at the same constant rate, 6 identical machines can | Difficulty: Sub-600 Level, Work/Rate Problems, Source: Official Guide, Source: OG 2015, Source: OG 12, Source: OG 11, Source: OG 10 |
| 93 | |-4| (|-20|-|5|)= ? | Difficulty: Sub-600 Level, Absolute Values/Modulus, Arithmetic |
| 94 | There is a total of 120 marbles in a box, each of which is red, green, | Difficulty: Sub-600 Level, Probability, Source: GMAT Paper Tests |
| 95 | If x > 0 and x^2 = 161, what is the best whole number approximation of | Difficulty: Sub-600 Level, Inequalities, Source: Official Guide [Pre-2000], Source: OG 1988 |
| 96 | The sum of the weekly salaries of 5 employees is $3,250. If each of th | Difficulty: Sub-600 Level, Percent and Interest Problems, Statistics and Sets Problems, Source: Official Guide, Source: OG 2020, Source: OG 2019, Source: OG 2018 |
| 97 | If 3/x = 2 and y/4 = 3, then (3 + y)/(x + 4) = | Difficulty: Sub-600 Level, Algebra, Source: Official Guide, Source: OG 10, Source: Quant Review 2016, Source: Quant Review 2nd, Source: Quant Review 1st |
| 98 | A certain type of concrete mixture is to be made of cement, sand and g | Difficulty: Sub-600 Level, Arithmetic, Fractions/Ratios/Decimals, Mixture Problems, Source: Official Guide [Pre-2000], Source: OG 1988 |
| 99 | (1/2 - 1/3) + (1/3 - 1/4) + (1/4 - 1/5) + (1/5 - 1/6) = | Difficulty: Sub-600 Level, Arithmetic, Source: Official Guide, Source: OG 2020, Source: OG 2019 |
| 100 | If x > y and a > b, which of the following must be true? | Difficulty: Sub-600 Level, Inequalities, Source: Other - Please specify |
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