Exams › IBPS PO › Quantitative Aptitude

A and B together complete work in 24 days. A alone takes 48 days. In how many days can B alone complete the work?

1. 24
2. 42
3. 48
4. 36

Correct answer: 48

Solution

Together: 1/A+1/B=1/24. A alone=48 days. 1/B=1/24-1/48=(2-1)/48=1/48. B takes 48 days alone.

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