carcass wrote:

2ab5 is a four-digit number divisible by 25. If the number formed from the two digits ab is a multiple of 13, then ab =

(A) 10

(B) 25

(C) 52

(D) 65

(E) 75

Kudos for the right solution AND explanation

Two approach to solve this problem:

First:

If a number is divisible by 25 if the last 2 digits are divisible by 25. Only Option C .

Second:

Check for the multiple of 13 from the options, we can quickly eliminate A,B and E . C or D would make the number divisible by 25. Looking at choice C, the number would be 2525, which is clearly div by 25.

Option C