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English and Logical Reasoning Prep Guide

Exam: English and Logical Reasoning Prep Guide
Subject: Logical Reasoning
Chapter: Mathematical Operations

English and Logical Reasoning Prep Guide · Logical Reasoning · Mathematical Operations

If (9 × 6=45,7 × 4=33) and (6 × 4=20), then what is the value of (5...

If (9 \times 6=45,7 \times 4=33) and (6 \times 4=20), then what is the value of (5 \times 3) ?

Options

A13
B16
C24
D10

Correct answer

B. 16

Step-by-step solution

The logic here is as follows,

9^2-6^2=81-36=45

7^2-4^2=49-16=33

6^2-4^2=36-16=20

Similarly,

5^2-3^2=25-9=16

Thus, the value of (5 \times 3=16).

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