Question Bank - Logical Reasoning

Here's the question bank on all the logical reasoning topics.

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In each of the number-pairs, the second number is obtained by performing a certain mathematical operation on the first number. Three of the following pairs follow the same pattern and thus form a group. Select the number-pair that does NOT belong to that group.

A.
22, 34
B.
11, 12
C.
25, 42
D.
17, 24

Solution:

The logic followed here is:-From option 1:-(22, 34)22 × 2 = 44 - 10 = 34From option 2:-(11, 12)11 × 2 = 22 - 10 = 12From option 3:-(25, 42)25 × 2 = 50 - 10 = 40 ? 42,It is different from others.From option 4:-(17, 24)17 × 2 = 34 - 10 = 24Hence, "option 3" is the correct answer.

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