Two numbers are in ratio 4 : 9 and their HCF is 11. Their LCM is: A. 396 B. 44 C. 99 D. 400

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Answer: (A) A

Explanation

The numbers are 4 × 11 = 44 and 9 × 11 = 99. Since 4 and 9 have no common factor, LCM = 11 × 4 × 9 = 396.