In a certain code language,
A + B means ‘A is the mother of B’
A – B means ‘A is the brother of B’
A × B means ‘A is the wife of B’ and
A ÷ B means ‘A is the father of B’.
How is M related to Q if ‘M + N × O ÷ P – Q’?

Question

Question

This question was previously asked in

RRB NTPC Graduate Level CBT-I Official Paper (Held On: 05 Jun, 2025 Shift 1)

Answer 1

Blood relation

Decoding symbols:

Given: M + N × O ÷ P – Q

M + N → M is the mother of N. (M is Female)

N × O → N is the wife of O. (N is Female, O is Male)

O ÷ P → O is the father of P. (O is Male, P's gender is unknown)

P – Q → P is the brother of Q. (P is Male, Q's gender is unknown)

Based on the decoded relationships, here is the Family Tree Representation:

qImage686b88efb49771ca8e06b255

Thus, M is the mother's mother of Q.

Hence, the correct answer is "Option 4".