Question 59

Pick out the odd in the following-

Solution

HCF (64, 100) = 4 -> perfect square
HCF (36, 45) = 9 -> perfect square
HCF (48, 90) = 6 -> not a perfect square
HCF (29, 85) = 1 -> perfect square

So, 48 - 90 is the odd man out.

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