GMAT Quantitative Reasoning Practice Test 4

Question : 77 of 100

Marks: +1, -0

A, B

and

C

are different numbers, each between 0 and 9 .
If

B=C+2

, what is

B C A-C B A

? (CBA and

B C A

are both 3 digit numbers).

Solution:

Let's put in some numbers.

C=1

, so

B=1+2=3

. There is no information about

A

so we'll leave it as

A

B C A-C B A=31 A-13 A=180

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