Search found 27 matches


ok but how to find out that the sum of 12,13,14 squared is 590?

by klaud

Thu Mar 15, 2012 11:15 am
Forum: Problem Solving
Topic: consecutive numbers
Replies: 9
Views: 1944

Well, the bad news is, your score will automatically show up for the next five years along with any subsequent sittings for the GMAT, so even if you elect not to send the score to a school, when you do it next time, your score will be there. if this was your first sitting, don't worry. The good new...

by klaud

Thu Mar 15, 2012 9:56 am
Forum: Ask an MBA Admissions Consultant
Topic: Should you cancel your GMAT score?
Replies: 3
Views: 1729

Reciprocal?

How can i solve this?

(1/4)^-1/4

(4)^-1/2

(1/4)^1/4

by klaud

Thu Mar 15, 2012 9:42 am
Forum: Problem Solving
Topic: Reciprocal?
Replies: 1
Views: 3551

consecutive numbers

EDITED

If x,y and z are three consecutive odd numbers and x^2+y^2+z^2=683, what is their sum?

by klaud

Thu Mar 15, 2012 9:39 am
Forum: Problem Solving
Topic: consecutive numbers
Replies: 9
Views: 1944

number list

If the first number of a number list is 4 and each of any successive number is 2 more than the precedent, which is the number at 77th place?

How i solve this question?

by klaud

Thu Mar 15, 2012 9:33 am
Forum: Problem Solving
Topic: number list
Replies: 1
Views: 1120

probability

Joshua and John work with 4 other workers. Two of the 6 workers are to be chosen to work on a new project. What is the probability that both Joshua and John will be chosen?

1/6 * 1/5 = 1/30

but the answer is 1/15. Why?

by klaud

Wed Mar 14, 2012 8:10 am
Forum: Problem Solving
Topic: probability
Replies: 1
Views: 843

percentage

In 1985 a company sold a brand of shoes to retailers for a fixed price per pair. In 1986 the number of pairs of the shoes that the company sold to retailers decreased by 20 percent, while the price per pair increased by 20 percent. If the company’s revenue from the sale of the shoes in 1986 was $3...

by klaud

Wed Mar 14, 2012 4:37 am
Forum: Problem Solving
Topic: percentage
Replies: 2
Views: 1973

average

Image

the answer is C.

Why not D?

44x3=132

132-11=121

by klaud

Sat Mar 10, 2012 6:32 am
Forum: Problem Solving
Topic: average
Replies: 1
Views: 839

rate

During a spring season, a certain glacier surged at the rate of 1 mile per 100 days. What was its rate in feet per hour? (1 mile = 5,280 feet)

A. 5/11

B. 11/5

C. 55

D. 110

E. 22,000

by klaud

Fri Mar 09, 2012 3:42 am
Forum: Problem Solving
Topic: rate
Replies: 3
Views: 2005

percent

Membership of organization X Honorary members 78 Fellows 9,209 Members 35,509 Associate memb. 27,909 Affiliates 2,372 According to the table above, the numbers of fellows was approximately what percent of the total membership of organization? A. 9% b. 12% c. 18% d. 25% e. 35% 78+9,209,+35,509+27,909...

by klaud

Thu Mar 08, 2012 8:57 am
Forum: Problem Solving
Topic: percent
Replies: 3
Views: 2473

I solved this problem in this way:

1,20-0,65= 0,55

the difference between cost and revenue of each product MUST cover the fixed costs.

9,900:0,55=18,000

by klaud

Thu Mar 08, 2012 8:30 am
Forum: Problem Solving
Topic: equation
Replies: 3
Views: 4466

algebra

A total of 10,000 dollar was invested in two certificates of deposit at simple annual interest rates of 6 percent and 8 percent, respectively. if the total interest on the two certificates was 720 dollar at the end of one year, what fractional part of the 10,000 dollar was invested at the higher rat...

by klaud

Thu Mar 08, 2012 7:22 am
Forum: Problem Solving
Topic: algebra
Replies: 1
Views: 888

equation

A small business invests $9,900 in equipment to produce a product. Each unit of the product costs $0.65 to produce and is sold for $1.20. How many units of the product must be sold before the revenue received equals the total expense of production, including the initial investment in equipment? A. 1...

by klaud

Thu Mar 08, 2012 6:47 am
Forum: Problem Solving
Topic: equation
Replies: 3
Views: 4466

average

A college chemistry course is divided in two sections. In section A, the average score was 92,while, in section B, the average score was 84. If the average score of all 40 students was 89, how many students are in section A?

by klaud

Tue Feb 21, 2012 6:50 am
Forum: Problem Solving
Topic: average
Replies: 1
Views: 2337

ratio

A club sold an average (arithmetic mean) of 92 raffle tickets per member. Among the female members, the average number sold was 84, and among the male members, the average number sold was 96. What was the ratio of the number of male members to the number of female members in the club? (A) 1 : 1 (B) ...

by klaud

Fri Feb 17, 2012 8:49 am
Forum: Problem Solving
Topic: ratio
Replies: 4
Views: 6324