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A and B together complete a work in 12 days. A alone in 18 days. How long does B alone take?
Answer & Solution
Correct answer: D.
1. A+B per day: 1/12. A per day: 1/18. So B per day: 1/12 − 1/18 = 3/36 − 2/36 = 1/36.
2. B alone takes 36 days.
_Source: TSICET 2024 PYQ Q.83 (Shift 1, Time and Work)_
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