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Question : Directions: The second number in the given number pairs is obtained by performing certain mathematical operations(s) on the first number. The same operation(s) are followed in all the pairs except one. Find that odd number pair.

Option 1: 5 : 45

Option 2: 2 : 10

Option 3: 3 : 21

Option 4: 4 : 32


Team Careers360 1st Jan, 2024
Answer (1)
Team Careers360 15th Jan, 2024

Correct Answer: 2 : 10


Solution : Let's check the options –
First option: 5 : 45; 5 + 2 = 7 and 72 – 22 = 49 – 4 = 45
Second option: 2 : 10; 2 + 2 = 4 and 42 – 22 = 16 – 4 = 12 ≠ 10
Third option: 3 : 21; 3 + 2 = 5 and 52 – 22 = 25 – 4 = 21
Fourth option: 4 : 32; 4 + 2 = 6 and 62 – 22 = 36 – 4 = 32

So, only the second option does not follow the pattern of the other three options. Hence, the second option is correct.

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