Mini quiz answers (part II)

Last updated: 3 Mar 2007

Answers to part II of the data sufficiency mini quiz.

Remind yourself what the answers A-E stand for with 1-2-TEN.

# Question Is 1 sufficient? Is 2 sufficient?Answer (A-E)
1

What percentage of R is S?

  1. `R/S = 24/25`
  2. `R + 3 = S`
 Yes No A (1 alone)
2

Is `m/n` an integer?

  1. `m` is an even number
  2. `m` is a multiple of `n`
 No Yes B (2 alone)
3

Is `x` an even number?

  1. `x^2` is even
  2. `x + 1` is odd
 Yes Yes D (Either)
4

What is the value of a + b?

  1. b = 7
  2. a - b = 12
 No No.

Since neither on it's own can answer the question the answer to the question could be C (Together) or E (Neither).

In this case using both pieces of information you can work out what a and b are and so discover the value of a + b.

Therefore the answer is C.
5

Is `y` an odd number?

  1. `2y` is an even number
  2. `y` is divisible by 3
 No No

Since neither on it's own can answer the question the answer to the question could be C (Together) or E (Neither).

In this case even using both pieces of information together you can't work out whether y is odd.

Therefore the answer is E.

Next page: Simplify questions and data statements

You must log in or register to add a comment.

Creative Commons License