Question 17

In the following question, select the odd number from the given alternatives.

Solution

The logic here is

2 + 6 + 8 = 16

2 + 4 + 6 = 12

3 + 5 + 7 = 15

5 + 7 + 9 = 21

In all number pairs except 579 - 23, second number is the sum of digits of first number.

$$\therefore\ $$579 - 23 is the odd number pair among the given number pairs.

Hence, the correct answer is Option D

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