Math (PS) A car dealership sold two cars: the first car at a 10% profit and the second car at a 10% loss, which gave them an overall profit margin of 5% from these two sales. If the dealership’s total profit was $1000, what was the...

Math (PS) A computer generated a sequence of numbers using the following formula: is the common difference between any two consecutive terms of the sequence If the sum of the second and the fifth terms of the sequence is 8 and the sum of the...

Math (PS) Lionel left his house and walked towards Walt’s house, 48 miles away. Two hours later, Walt left his house and ran towards Lionel’s house. If Lionel’s speed was 4 miles per hour and Walt’s 6 miles per hour, how many miles had Lionel walked...

GMAT Pill just put up video explanations for Official Guide questions 209-230 to the Practice Pill Platform. Through this link, you can: 1) Keep track of your OG performance online. Just enter in your answer and the system will record your responses. You can favorite them...

Math (PS) The following table shows results of a quality inspection of a lot of 15 mirrors. Defects    Frequency 0 6 1 1 2 4 3 3 4 1 The difference between the median number of defects and the average number of defects in the sample checked is between: (A) -1 and 0 (B) 0 and 0.5 (C) 0.5 and 1 (D)...

Math (PS) If is the number of distinct positive divisors of , what is the value of ? (A) 3 (B) 4 (C) 5 (D) 6 (E) 7 Question Discussion & Explanation Correct Answer - D - (click and drag your mouse to see the answer) GMAT Daily Deals Manhattan Review MBA...

Math (PS) How many of the three-digit numbers are divisible by 7? (A) 105 (B) 106 (C) 127 (D) 128 (E) 142 Question Discussion & Explanation Correct Answer - D - (click and drag your mouse to see the answer) GMAT Daily Deals e-GMAT: Save up to $536 on the world’s first prep course designed...

Math (PS) There are two concentric circles with radii 10 and 8. If the radius of the outer circle is increased by 10% and the radius of the inner circle decreased by 50%, by what percent does the area between the circles grow? (A) 140% (B) 141% (C) 190% (D)...

Math (PS) If the circus were to sell all of its 220 tickets for this month’s performance at its usual price, the revenue from sales would be 10% greater than that collected last month. If the circus raised the ticket price by 5% and sold only...

Math (PS) Some part of a 50% solution of acid was replaced with an equal amount of 30% solution of acid. If, as a result, 40% solution of acid was obtained, what part of the original solution was replaced? (A) (B) (C) (D) (E) Question Discussion &...