Question : Directions: In the following question, find the odd number pair from the given alternatives.
Option 1: 41 – 72
Option 2: 12 – 30
Option 3: 51 – 42
Option 4: 11 – 20
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Correct Answer: 41 – 72
Solution :
Let's check the options –
First option:
41 – 72→4 + 1 = 5 and 7 + 2 = 9
Second option:
12 – 30→1 + 2 = 3 and 3 + 0 = 3
Third option:
51 – 42→5 + 1 = 6 and 4 + 2 = 6
Fourth option:
11 – 20→1 + 1 = 2 and 2 + 0 = 2
So, the first option is different from the other three options as the sum of the digits of the first and the second number is different whereas in all other options, the sum of the digits is the same. Hence, the first option is correct.
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