Question : Directions: The second number in the given number pairs is obtained by performing certain mathematical operation(s) on the first number. The same operation(s) is/are followed in all the number pairs except one. Find that odd number pair.
Option 1: 128 : 8
Option 2: 288 : 12
Option 3: 350 : 15
Option 4: 18 : 3
Correct Answer: 350 : 15
Solution :
Let's check the options –
First option:
128 : 8; (8)
2
× 2 = 64 × 2 = 128
Second option:
288 : 12; (12)
2
× 2 = 144 × 2 = 288
Third option:
350 : 15; (15)
2
× 2 = 225 × 2 = 450 ≠ 350
Fourth option:
18 : 3; (3)
2
× 2 = 9 × 2 = 18
So, only the third option is different from the other three options. Hence, the third option is correct.
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