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Re: If x < y, which of the following must be true?

If x < y, which of the following must be true? (A) x < y^2 (B) x^2 < y (C) x^2 < y^2 (D) (x – y)^2 > 0 (E) x^3 > y If x < y, then we can also conclude that x ≠ y. If x ≠ y, then we can be certain that x - y ≠ 0 If x - y ≠ 0, then we can be certain that (x – y)^2 > 0 Answer: D ASIDE: Another approac...

by [email protected]

Wed Jan 19, 2022 9:44 am
Forum: Problem Solving
Topic: If x < y, which of the following must be true?
Replies: 1
Views: 53

Re: What distance did Jane travel?

What distance did Jane travel? (1) Bill traveled 40 miles in 40 minutes. (2) Jane traveled at the same average rate as Bill. Answer: E Source: Official Guide Target question : What distance did Jane travel? Statement 1 : Bill traveled 40 miles in 40 minutes. No info about Jane Statement 1 is NOT SU...

by [email protected]

Mon Jan 17, 2022 8:07 am
Forum: Data Sufficiency
Topic: What distance did Jane travel?
Replies: 1
Views: 40

Re: At what simple annual interest rate must \(\$2,500\) be invested if it is to earn \(\$225\) in interest in one year?

At what simple annual interest rate must \(\$2,500\) be invested if it is to earn \(\$225\) in interest in one year? (A) \(6\%\) (B) \(7\%\) (C) \(8\%\) (D) \(9\%\) (E) \(10\%\) Answer: D Source: GMAT Prep Let x = the PERCENT annual interest rate So, we want: x percent of $2,500 = 225 Rewrite as: x...


Re: A certain computer company produces two different monitors, P and Q. In 2010, what was the net profit from the sale

Source: Official Guide A certain computer company produces two different monitors, P and Q. In 2010, what was the net profit from the sale of the two monitors? 1) Of the company's expenses in 2010, rent and utilities totaled $500,000 2) In 2010, the company sold 50,000 units of monitor P at $300 pe...


Re: In a certain history class of 17 juniors and seniors, each junior has written 2 book reports and each senior has wri

In a certain history class of 17 juniors and seniors, each junior has written 2 book reports and each senior has written 3 book reports. If the 17 students have written a total of 44 book reports, how many juniors are in the class? A. 7 B. 8 C. 9 D. 10 E. 11 Answer: A Source: Official Guide Here's ...


Re: Brent is 18 years younger than Justin. If in 5 years Brent will be half as old as Justin, how old was Justin 5 years

Brent is 18 years younger than Justin. If in 5 years Brent will be half as old as Justin, how old was Justin 5 years ago? A. 8 B. 18 C. 21 D. 26 E. 31 Answer: D Source: Veritas Prep Brent is 18 years younger than Justin. Let J = Justin's PRESET AGE So, J-18 = Brent's PRESENT age In 5 years, both pe...


Re: A certain state legislature consists of 124 members, each of whom is either a Democrat or a Republican. If there are

A certain state legislature consists of 124 members, each of whom is either a Democrat or a Republican. If there are 18 more Republicans than Democrats, how many Republicans are in the legislature? (A) 44 (B) 53 (C) 71 (D) 80 (E) 106 Answer: C Source: GMAT Paper Tests There are 18 more Republicans ...


Re: In a certain class consisting of 36 students, some boys and some girls, exactly 1/3 of the boys and exactly 1/4 of t

In a certain class consisting of 36 students, some boys and some girls, exactly 1/3 of the boys and exactly 1/4 of the girls walk to school. What is the greatest possible number of students in this class who walk to school? A. 9 B. 10 C. 11 D. 12 E. 13 Answer: C Source: Official Guide The important...


Re: If w/(x + y) = 1, what is the value of (x + y)/y ?

If w/(x + y) = 1, what is the value of (x + y)/y ? (1) x/y = 3/2 (2) y/w = 2/5 OA D Source: Magoosh Given : w/(x + y) = 1 Target question : What is the value of (x + y)/y ? Statement 1 : x/y = 3/2 Useful (and often-tested) fraction property: (a+b)/c = a/c + b/c The target question asks us to find t...

by [email protected]

Mon Jan 10, 2022 6:38 am
Forum: Data Sufficiency
Topic: If w/(x + y) = 1, what is the value of (x + y)/y ?
Replies: 1
Views: 134

Re: For any positive integer n, the length of n is defined as the number of prime factors whose product is n. For exampl

For any positive integer n, the length of n is defined as the number of prime factors whose product is n. For example, the length of 75 is 3, since 75 = 3 * 5 * 5. How many two-digit positive integers have length 6? A. None B. One C. Two D. Three E. Four OA C Source: GMAT Prep Let's first find the ...


Re: If the cost of a yearly membership in a certain club increased from $199 to $ 299, what was the approximate percent

Source: GMAT Prep If the cost of a yearly membership in a certain club increased from $199 to $299, what was the approximate percent increase in cost? A. 33% B. 50% C. 66 2/3% D. 100% E. 150% The OA is B When I scan the answer choices (ALWAYS scan the answer choices before determining which approac...


Re: If Mike buys a bicycle and a helmet for a total cost of $315, how much does the helmet cost?

Princeton Review If Mike buys a bicycle and a helmet for a total cost of $315, how much does the helmet cost? 1) The bicycle costs twice as much as the helmet 2) The bicycle costs $210 OA D Target question : How much does the helmet cost? Given : bicycle + helmet = $315 Statement 1 : The bicycle co...


Re: At what speed was Erik running when he was at the halfway point of his route? 1. Erik's route was 10 miles long and

At what speed was Erik running when he was at the halfway point of his route? 1. Erik's route was 10 miles long and took him 2 hours to complete. 2. Erik ran at an average speed of 5 miles per hour on the route OA E Source: Veritas Prep IMPORTANT: The two statements essentially provide the exact sa...


Re: If \(x\) and \(y\) are positive integers, is \(xy\) even?

If \(x\) and \(y\) are positive integers, is \(xy\) even? \((1)\, x^2 + y^2 - 1\) is divisible by \(4.\) \((2)\, x + y\) is odd. Answer: D Source: Official Guide Some important rules: #1. ODD +/- ODD = EVEN #2. ODD +/- EVEN = ODD #3. EVEN +/- EVEN = EVEN #4. (ODD)(ODD) = ODD #5. (ODD)(EVEN) = EVEN ...


Re: The outer dimensions of a closed rectangular cardboard box are 8 centimeters by 10 centimeters by 12 centimeters....

The outer dimensions of a closed rectangular cardboard box are 8 centimeters by 10 centimeters by 12 centimeters, and the six sides of the box are uniformly 1/2 centimeter thick. A closed canister in the shape of a right circular cylinder is to be placed inside the box so that it stands upright whe...