Start learning →

Define a # b as the product of a and b minus a. Compute 6 # 4.

A24
B20
C18
D10
Answer & Solution
Correct answer: C. 18
6 × 4 = 24 and 24 − 6 = 18.
Practise this question with Quill — RRB NTPC →

Keep practising Order of Operations

Browse all Order of Operations questions for RRB NTPC, or explore more Reasoning topics.

Start a Order of Operations lesson →