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Re: How many positive integers less than 100 are neither multiples of 2 or 3.

How many positive integers less than 100 are neither multiples of 2 or 3. a)30 b)31 c)32 d)33 e)34 OA D Source: GMAT Prep Multiples of 2: 2, 4, 6, ..., 96, 98 98/2 = 49, so there are 49 multiples of 2 Multiples of 3: 3, 6, 9, ..., 99 99/3 = 33, so there are 33 multiples of 3 At this point we have c...


Re: On July 1 of last year, total employees at company E was decreased by 10 percent. Without any change in the salaries

On July 1 of last year, total employees at company E was decreased by 10 percent. Without any change in the salaries of the remaining employees, the average (arithmetic mean) employee salary was 10 percent more after the decrease in the number of employees than before the decrease. The total of the...


Re: How many 4-digit positive integers are there in which all 4 digits are even?

How many 4-digit positive integers are there in which all 4 digits are even? A. 625 B. 600 C. 500 D. 400 E. 256 OA C Source: GMAT Prep Take the task of creating the 4-digit numbers and break it into stages . Stage 1 : Select an even digit for the thousands digit. Since 0 cannot be the first digit o...


Re: In the figure shown, point O is the center of the semicircle and points B, C, D

Untitled.png In the figure shown, point O is the center of the semicircle and points B, C, D lie on the semicircle. If the length of line segment AB is equal to the length of line segment OC, what is the degree measure of angle BAO ? (1) The degree measure of angle COD is 60º. (2) The degree measur...


Re: In how many ways can a coach select a 4-person university team from a pool of eligible candidates?

In how many ways can a coach select a 4-person university team from a pool of eligible candidates? (1) The number of eligible candidates is three times as great as the number of slots on the team. (2) 60% of the 20 athletes are eligible to play on the four-person university team. OA D Source: Verit...


Re: An instructor scored a student's test of 50 questions by

An instructor scored a student’s test of 50 questions by subtracting 2 times the number of incorrect answers from the number of correct answers. If the student answered all of the questions and received a score of 38, how many questions did that student answer correctly? A. 19 B. 38 C. 41 D. 44 E...


Re: If x^2 < x, then x must be

If x^2 < x, then x must be A. less than 0 B. equal to 0 C. between 0 and 1 D. equal to 1 E. greater than 1 OA C Source: GMAT Prep Given: x² < x Subtract x from both sides to get: x² - x < 0 Factor: x(x - 1) < 0 We can already see that, when x = 0, we get: 0(0 - 1) < 0 , which results in 0 < 0 , whi...

by [email protected]

Sun May 15, 2022 10:25 am
Forum: Problem Solving
Topic: If x^2 < x, then x must be
Replies: 1
Views: 146

Re: If the average of ten numbers is 10, then which of the following could be the standard deviation of the ten numbers?

If the average of ten numbers is 10, then which of the following could be the standard deviation of the ten numbers? I. 0 II. 10 III. 20 A. I only B. I and II C. I and III D. II and III E. I, II, and III OA E Source: Princeton Review First recognize that, if all 10 numbers are 10 to get the set {10...


Re: Surface Area

What fraction part of the total surface area of cube C is red? (1) Each of 3 faces of C is exactly 1/2 red. (2) Each of 3 faces of C is entirely white. Target question : What fractional part of the total surface area of cube C is red Statement 1 : Each of 3 faces of C is exactly 1/2 red Since we ha...

by [email protected]

Mon May 09, 2022 10:42 am
Forum: Data Sufficiency
Topic: Surface Area
Replies: 3
Views: 947

Re: ratio problem with rats...

hello everybody, can sombody help me wit this task? Actually I thought it´s easy, but I don´t get the answer... Forty percent of the rats included in an experiment were male rats. If half of the rats died during the experiment and 30 percent of the rats that died were male rats, what was the ratio ...

by [email protected]

Mon May 09, 2022 10:20 am
Forum: Problem Solving
Topic: ratio problem with rats...
Replies: 2
Views: 1168

Re: If s is an integer, is 24 a divisor of s ?

If s is an integer, is 24 a divisor of s ? (1) Each of the numbers 3 and 8 is a divisor of s. (2) Each of the numbers 4 and 6 is a divisor of s. OA A Source: Official Guide ------ASIDE---------------------------- A lot of integer property questions can be solved using prime factorization. For q...

by [email protected]

Mon May 02, 2022 7:00 am
Forum: Data Sufficiency
Topic: If s is an integer, is 24 a divisor of s ?
Replies: 2
Views: 469

Re: A craftsperson made 126 ornaments and put them all into

A craftsperson made 126 ornaments and put them all into boxes. If each box contained either 6 ornaments or 24 ornaments, how many of the boxes contained 24 ornaments? (1) Fewer than 4 of the boxes contained 6 ornaments (2) More than 3 of the boxes contained 24 ornaments OA A Source: GMAT Prep Given...


Re: tricky

Q33: In Town X, 64 percent of the population are employed, and 48 percent of the population are employed males. What percent of the employed people in Town X are females? A. 16% B. 25% C. 32% D. 40% E. 52% OA: B Since the question is asking us to find a certain percent (and not a specific value), l...

by [email protected]

Mon May 02, 2022 6:46 am
Forum: Problem Solving
Topic: tricky
Replies: 9
Views: 6459

Re: For a certain set of numbers, if x is in the set, then x - 3

For a certain set of numbers, if x is in the set, then x - 3 is also in the set. If the number 1 is in the set , which of the following must also be in the set ? a) 4 b) -1 c) -5 A. a only, B. b only, C. c only, D. a and b only E. b and c only OA C Source: GMAT Prep Important: This IF-THEN statemen...


Re: Positive integer y is 50 percent of 50 percent of positive integer x, and y of x equals 100...

Official Guide Positive integer y is 50 percent of 50 percent of positive integer x, and y percent of x equals 100. What is the value of x? A. 50 B. 100 C. 200 D. 1000 E. 2000 OA C Positive integer y is 50 percent of 50 percent of positive integer x We can write: y = (50/100)(50/100)(x) Simplify: y...