A can complete a job in 12 days and B in 18 days. How long will they take together?

Type: MCQ • Marks: 1

A. 9 days

B. 7.2 days

C. 6 days

D. 8 days

Explanation

Combined rate = 1/12 + 1/18 = 5/36 job/day. Time = 36/5 = 7.2 days.

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UP TGT Mathematics

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