CAT DILR Questions | CAT Data Sufficiency questions

Comprehension

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CAT/1998

Question . 68

Is n odd?

(i) n is divisible by 3, 5, 7 and 9

(ii) 0 < n < 400

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Explanatory Answer

Method of solving this CAT DILR Question from Data Sufficiency question

(c) If n is divisible by 3, 5, 7 and 9 i.e n is divisible by 315 (LCM of 3, 5 7, 9 ) But, it is not necessary that it is odd unless and until n < 316

Since n < 400, hence we can say that n is an odd number become as n exceeds 400 then any even multiple of 315 will be even.

Hence both statements are required