Question : Directions: Three of the following number triads are alike in some manner and one is different. Select the odd number triads.
(NOTE: The second and third numbers in the given number triads are formed by performing a certain operation on the first number. The same operation is followed in all the number triads except one. Find that odd number triad.)
Option 1: 4 : 16 : 12
Option 2: 15 : 225 : 210
Option 3: 11 : 121 : 110
Option 4: 7 : 49 : 40
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Correct Answer: 7 : 49 : 40
Solution :
Let's check the options –
First option:
4 : 16 : 12→(4)
2
= 16; 16 – 4 = 12
Second
option:
15 : 225 : 210→(15)
2
= 225; 225 – 15 = 210
Third option:
11 : 121 : 110→(11)
2
= 121; 121 – 11 = 110
Fourth option:
7 : 49 : 40→(7)
2
= 49, 49 – 7 = 42 ≠ 40
So, the fourth option does not follow the pattern. Hence, the f ourth option is correct.
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