A can finish a work in 12 days and B in 18 days. They work together for 4 days, after which A leaves. In how many more days will B finish the remaining work?

A. 7

B. 6

C. 10

D. 8

Doubtly AI Asked 27 Oct 2026 AI-generated · not yet verified ibps rrb Save WhatsApp Report

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Answer: D. 8

Answer: (D) 8

In 4 days they do \( 4\left(\frac{1}{12}+\frac{1}{18}\right) = \frac{5}{9} \). Remaining \( \frac{4}{9} \) at B's rate \( \frac{1}{18} \) takes 8 days.

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

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A can finish a work in 12 days and B in 18 days. They work together for 4 days, after which A leaves. In how many more days will B finish the remaining work?

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