Data Sufficiency (DS) | Re: If x and y are integers and 2 < x < y, does y = 16 ?
grassmonkey wrote:When I see GCD, I think, "the most they have in common." When I see LCM, I think, "the least you need to make [satisfy] all of them." Helps me, maybe it can help someone else....
View ArticleProblem Solving (PS) | The average (arithmetic mean) of x,x+2 ,x+4, and x+6...
The average (arithmetic mean) of x, x + 2, x + 4, and x + 6 is 6. What is the average of x^2, (x + 2)^2, (x + 4)^2, and (x + 6)^2 ?A. 30B. 36C. 41D. 49E. 52
View ArticleProblem Solving (PS) | The volume of a large cube is twice the volume of a...
The volume of a large cube is twice the volume of a small cube. If the length of an edge of the small cube is 2, what is the length of an edge of the large cube?A. 4B. 8C. \(2\sqrt[3]{2}\)D....
View ArticleProblem Solving (PS) | A storage trunk contains 6 identical blankets and 3...
A storage trunk contains 6 identical blankets and 3 identical pillows. The weight of each blanket is 3 times the weight of each pillow. What is the ratio of the total weight of the 6 blankets to the...
View ArticleProblem Solving (PS) | Re: A certain experiment has only three possible...
The sum of p+r+s=1Given r=1-3pTherefore, p+1-3p+s=11-2p+s=1On solving s=2p. IMO B
View ArticleProblem Solving (PS) | Of the x members of a certain club, 3/8 are men and...
Of the x members of a certain club, 3/8 are men and 2/9 of the men are over 50 years old. If 4 men in the club are over 50 years old, what is the value of x?A. 48B. 68C. 72D. 96E. 136
View ArticleProblem Solving (PS) | At a local election there were two propositions on the...
At a local election there were two propositions on the ballot, R and S. Twice as many voters voted "yes" for R as for S. If the number who voted "yes" for R but "no" for S was 750 and the number who...
View ArticleProblem Solving (PS) | Re: The circumference of circle C is equal to the...
Answer: C. zπ/4Let the radius of circle be r and the side of square be a.Accordingly to condition, Circumference of Circle (2πr ) = Perimeter of square (4a)2πr = 4ar = 4a/2π = 2a/π ----equation 1Again,...
View ArticleProblem Solving (PS) | Which of the following lists has the greatest standard...
Which of the following lists has the greatest standard deviation?A. 10, 20, 30, 40, 50B. 10, 30, 30, 30, 50C. 10, 25, 30, 35, 50D. 10, 10, 30, 50, 50E. 20, 20, 30, 40, 40
View ArticleProblem Solving (PS) | Set A consists of four consecutive integers. Set B...
Set A consists of four consecutive integers. Set B consists of all integers that result from adding 2 to each of the integers in set A together with all integers that result from subtracting 2 from...
View ArticleData Sufficiency (DS) | Re: Is the slope of line q negative?
Hello from the GMAT Club BumpBot!Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think...
View ArticleProblem Solving (PS) | A total of $72,000 was invested for one month in a new...
A total of $72,000 was invested for one month in a new money market account that paid simple annual interest at the rate of r percent. If the investment earned $360 in interest for the month, what is...
View ArticleProblem Solving (PS) | If the speed of a vehicle was reduced from 65 miles...
If the speed of a vehicle was reduced from 65 miles per hour to 35 miles per hour, by approximately how many kilometers per hour was the speed reduced? (1 kilometer = 0.62 mile, rounded to the nearest...
View ArticleProblem Solving (PS) | When the integer n is divided by 20, the remainder is...
When the integer n is divided by 20, the remainder is 15. Which of the following must be a divisor of n ?A. 3B. 5C. 6D. 7E. 10
View ArticleProblem Solving (PS) | Of the 36 students in a certain class, 10 are in the...
Of the 36 students in a certain class, 10 are in the chess club and 13 are in the bridge club. If 20 of the students are not in either club, how many of the students are in only one of the two clubs?A....
View ArticleData Sufficiency (DS) | Re: Is x>y? (1) 0 < x < 0.75 (2) 0.25 < y < 1.0
Is X>Y?St 1: 0 < X < 0.75The statement is insufficient because we have no information about "Y".St 2: 0.25 < Y < 1.0The statement is insufficient because we have no information about...
View ArticleProblem Solving (PS) | The average (arithmetic mean) ages, in years, of the...
The average (arithmetic mean) ages, in years, of the people in group A and group B are 41 and 36, respectively. The average age, in years, of the people in the two groups combined is 38. If there are...
View ArticleProblem Solving (PS) | On the outside, a closed rectangular packing box, made...
On the outside, a closed rectangular packing box, made out of cardboard, is 12 inches long, 18 inches wide, and 24 inches high. If the cardboard is 1/4 inch thick, which of the following is closest to...
View ArticleProblem Solving (PS) | Re: If a sausage-making machine produces 3,000...
MrCleantek wrote:Bunueloptions D and E are same!_______________Edited. Thank you.
View ArticleData Sufficiency (DS) | Re: If x is an integer, is 9^x + 9^(-x) = b ? (1) 3^x...
Hello from the GMAT Club BumpBot!Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think...
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