Math (PS) There are two bars of gold-silver alloy; one piece has 2 parts of gold to 3 parts of silver, and the other has 3 parts of gold to…
Posts published in “Problem Solving”
Helpful articles and questions asked in Problem Solving section of GMAT Quant
Math (PS) If one of two parallel lines has 7 points on it and the other has 8, how many triangles can be drawn using the points? (A) 168 (B)…
Math (PS) A number of light bulbs were purchased to illuminate a gym. However, only of them were needed. The extra 160 light bulbs were returned. 60% percent of their…
Math (PS) How many distinct integers are factors of 90? (A) 6 (B) 8 (C) 9 (D) 10 (E) 12 Question Discussion & Explanation Correct Answer - E - (click…
Math (PS) At Daifu university, 40% of all students are both members of a student organization and want to reduce their tuition costs. 20% of those students who want to…
Math (PS) If function satisfies for all , which of the following must be true? (A) (B) (C) (D) (E) Question Discussion & Explanation Correct Answer - B - (click…
Math (PS) If equation encloses a certain region on the coordinate plane, what is the area of this region? (A) 20 (B) 50 (C) 100 (D) 200 (E) 400 Question…
Math (PS) Jack can complete the task in 8 hours. Tom can complete the task in 12 hours. If Jack works on the task alone for 4 hours and then…
Math (PS) How many odd three-digit integers greater than 800 are there such that all their digits are different? (A) 40 (B) 56 (C) 72 (D) 81 (E) 104 Question…
Math (PS) How many integers between 18 and 70 inclusive are divisible by either 7 or 9 but not both? (A) 11 (B) 12 (C) 13 (D) 14 (E) 15…