Start learning →

What is the gap between the squares 49 and 36?

A13
B12
C11
D14
Answer & Solution
Correct answer: A. 13
The gap between consecutive squares n squared and (n-1) squared is 2n - 1, which is 13 for n = 7.
Practise this question with Quill — RRB NTPC →

Keep practising Number System

Browse all Number System questions for RRB NTPC, or explore more Mathematics topics.

Start a Number System lesson →