Question : Directions: In the following question, select the one that is different from the other three alternatives.
Option 1: 80 – 9
Option 2: 64 – 8
Option 3: 36 – 6
Option 4: 49 – 7
Correct Answer: 80 – 9
Solution :
Let's check the options –
First option:
80 – 9; 9
2
= 81 ≠ 80
Second option:
64 – 8; 8
2
= 64
Third option:
36 – 6; 6
2
= 36
Fourth option:
49 – 7; 7
2
= 49
So, in the first option, the first number is not the square of the second number. Hence the first option is correct.
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