If p1 and p2 are the populations and r1 and r2
October 31, 2015
GMAT OFFICIAL GUIDE DS Solution: We are given the following: p_1 = population of District 1 p_2 = population of District 2 r_1 = the numbers of representatives of …
Author: Scott Woodbury-Stewart
Is 4^(x + y) = 8^(10) ? (1) x – y = 9 (2) y/x = 1/4
October 31, 2015
GMAT OFFICIAL GUIDE DS Solution: We need to determine whether 4^(x+y) = 8^10. We start by breaking down our two bases into prime factors. 4^(x+y) = (2^2)^(x+y) = 2^(2x+2y) …
Terry holds 12 cards, each of which is red, white, green, or blue. If…
October 31, 2015
GMAT OFFICIAL GUIDE DS Solution: We are given that Terry has 12 total cards. The cards are colored red, white, green, or blue. We need to determine whether the …
The average (arithmetic mean) price of the 3 items that Kate
October 31, 2015
GMAT OFFICIAL GUIDE DS Solution: We are given that Kate purchased 3 items from a store at an average price of $50. We are also given that there was …
The interior of a rectangular carton is designed by a certain
October 31, 2015
GMAT OFFICIAL GUIDE DS Solution: We are given that a rectangular carton has a length of 48 cm, a width of 32 cm, and a height of 15 cm. …
If t denotes the thousandths digit in the decimal representation…
October 31, 2015
GMAT OFFICIAL GUIDE DS Solution: We are given that t denotes the thousandths digit of 0.43t7. We need to determine the value of t. Statement One Alone: If d …
If 90 students auditioned for the school…
October 30, 2015
GMAT OFFICIAL GUIDE DS Solution: We are given that 90 students auditioned for a musical, and we need to determine how many were accepted. Statement One Alone: 2/3 of …
If n is an integer, is n/7 an integer? (1) 3n/7 is an integer (2) 5n/7…
October 30, 2015
GMAT OFFICIAL GUIDE DS Solution: We need to determine whether integer n is even. Let’s review four facts about even and odd integers: 1) An integer and its square …