Question : Directions: Four pairs of numbers have been given, out of which three are alike in some manner, while one is different. Choose out the odd one.
Option 1: 25 : 650
Option 2: 14 : 210
Option 3: 7 : 50
Option 4: 21 : 462
Correct Answer: 7 : 50
Solution :
Let's check each option –
First option:
(25 : 650); (25)
2
+ 25 = 625 + 25 = 650
Second option:
(14 : 210); (14)
2
+ 14 = 196 + 14 = 210
Third option:
(7 : 50); (7)
2
+ 7 = 49 + 7 = 56 ≠ 50
Fourth option:
(21 : 462); (21)
2
+ 21 = 441 + 21 = 462
So, the third option is different from the other three options. Hence, the third option is correct.
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