CAT Quantitative Ability Questions | CAT Number System questions
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Explanatory Answer
Method of solving this CAT Quantitative Ability Question from Number System question
(b) n is an odd no. > 1
The minimum possible value of n = 3
n (n² – 1) = 3 × 8 = 24
Hence, n(n² – 1) is divisible by 24 always