Question : Directions: In the following question, select the one that is different from the other three alternatives.
Option 1: 81 – 9
Option 2: 8 – 64
Option 3: 54 – 6
Option 4: 3 – 27
Correct Answer: 8 – 64
Solution : Here, the greater number is equivalent to the multiplication of a smaller number by 9.
Let's check each option –
First option: 81 – 9; 9 × 9 = 81
Second option: 8 – 64; 8 × 9 = 72 ≠ 64
Third option: 54 – 6; 6 × 9 = 54
Fourth option: 3 – 27; 3 × 9 = 27
So, the second option is different from the others. Hence the second option is correct.
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