BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

When the positive integer \(n\) is divided by \(25\), the

Expert replies
by swerve » Thu May 23, 2019 2:10 pm

Timer

00:00

Answers

A

B

C

D

E

Stats

Difficulty

When the positive integer \(n\) is divided by \(25\), the remainder is \(13\). What is the value of \(n\)?

1) \(n < 100\)
2) When \(n\) is divided by \(20\), the remainder is \(3\).

The OA is C

Source: GMAT Prep
Join the discussion
Source: — Data Sufficiency |

by Ian Stewart » Fri May 24, 2019 5:47 am
Using Statement 1, n can be 13, 38, 63, and 88.

Using Statement 2 alone, we'll have an infinite number of values of n, separated by 100, the LCM of 25 and 20.

Using both Statements, n must be 63, and the answer is C.
For online GMAT math tutoring, or to buy my higher-level Quant books and problem sets, contact me at ianstewartgmat at gmail.com

ianstewartgmat.com
Join the discussion