Question : Direction: In the following question, select the one which is different from the other three alternatives.
Option 1: 3 : 30
Option 2: 5 : 128
Option 3: 8 : 515
Option 4: 9 : 731
Correct Answer: 9 : 731
Solution : Let's check the options —
First option: 3 : 30; 3 3 + 3 = 30. This is equal to the second number in the pair.
Second option: 5 : 128; 5 3 + 3 = 125. This is equal to the second number in the pair.
Third option: 8 : 515; 8 3 + 3 = 515. This is equal to the second number in the pair.
Fourth option: 9 : 731; 9 3 + 3 = 732. This is not equal to the second number in the pair. This option is different from the other options.
Hence, fourth option is correct.
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