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In the following question, select the odd group of numbers from the given alternatives.1. (11, 36, 169)2. (15, 36, 81)3. (26, 64, 100)4. (23, 25, 49)

Answer» Correct Answer - Option 1 : (11, 36, 169)

Logic:

(Digit Sum of First Number)2 = Second Number

(Digit Sum of Second Number)2 = Third Number

Checking options one by one;

1) (11, 36, 169) →

(1 + 1)2 = 22

= 4 ≠ 36

And;

(3 + 6)2

= 9= 81 ≠ 169

2) (15, 36, 81) →

(1 + 5)2

= 62 = 36

And;

(3 + 6)2

= 92 = 81

3) (26, 64, 100) →

(2 + 6)2

= 82 = 64

And;

(6 + 4)2

= 102 = 100

4) (23, 25, 49) →

(2 + 3)2

= 52 = 25

And;

(2 + 5)2

= 72

= 49

Hence, "(11, 36, 169)" is the correct answer.



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