Question : Directions: In the following question, select the one that is different from the other three alternatives.
Option 1: 65
Option 2: 126
Option 3: 28
Option 4: 215
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Correct Answer: 215
Solution : Let's check the options – First option: 65; 65 – 1 = 64 = 43; 64 is a perfect cube. Second option: 126; 126 – 1 = 125 = 53; 125 is a perfect cube. Third option: 28; 28 – 1 = 27 = 33; 27 is a perfect cube. Fourth option: 215; 215 – 1 = 214; 214 is not a perfect cube.
So, the fourth option differs from the others because its result is not a perfect cube after subtracting one from the given number. Hence, the fourth option is correct.
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Question : Directions: In the following question, select the one which is different from the other three alternatives.
Option 1: 24
Option 2: 28
Option 3: 42
Option 4: 56
Option 1: 63
Option 2: 69
Option 3: 65
Option 4: 66
Option 1: 49
Option 2: 36
Option 4: 100
Option 1: 51530
Option 2: 41220
Option 3: 2610
Option 4: 3915
Option 1: 9
Option 2: 27
Option 3: 64
Option 4: 8
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