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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. math exams

Sunday, June 22, 2014

GMAT test1

Q1. If $3x-21y=15$, then $7y-x$ is
  1. $-5$
  2. $5 $
  3. $3 $
  4. $7 $
  5. Cannot be determined
Q2. 




Tuesday, July 2, 2013

Question 02/07/2013 3.12

How many different 7-place license plates are possible if the first 2 places are for letters and the other 5 for numbers?

Ans : 67 600 000

Monday, December 31, 2012

Question 12/31/2012 10:06

What is the probability that the arrangement has both consecutive W's and consecutive Y's in WYSIWYG?

Ans. 0.0952

Wednesday, December 26, 2012

Question 12/26/2012 5:58

A group of students consists of 4 boys and 4 girls. How many ways are there to select 2 students of same sex from the group.

Ans. 12

Tuesday, December 25, 2012

Question 12/25/2012 2012 7:23

In how many ways may fifty-two cards be divided amongst tour players, so that each may have thirteen ?

Ans. $\frac{52!}{(13!)^4}$

Question 12/25/2012 6:57

In how many ways can three boys divide twelve oranges, each taking four, the oranges being all of different sizes ?

Ans. 34650

Question 12/25/2012 5:45

Four flags are to be hoisted on one mast, and there are twenty different flags to choose from : what choice have we ?

Ans. 116280