The HCF of two numbers is 15 and their LCM is 420. If one of the numbers is 105, what is the other number?

A. 90

B. 30

C. 45

D. 60

Doubtly AI Asked 27 Oct 2026 AI-generated · not yet verified ssc chsl Save WhatsApp Report

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Answer: D. 60

Answer: (D) 60

Product of two numbers = HCF \(\times\) LCM. Other number \(= \frac{15 \times 420}{105} = 60\). Check: HCF(60, 105) = 15 and LCM = 420.

Doubtly AI · 27 Oct 2026 AI-generated · not yet verified Report

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