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Aman and Barkha together work for 6 days and leave the job. Chandan can do the whole work in 30 days. If the ratio of their efficiency is 3 : 6 : 2, then in how many days can Chandan alone finish the remaining work?1). 16 days2). 18 days3). 12 days4). 14 days |
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Answer» Ratio of their efficiency = 3 : 6 : 2 Days of completion ratio = 1/3 : 1/6 : 1/2 = 2 : 1 : 3 3 ⇒ 30 1 ⇒ 10 2 ⇒ 20 Part of work done by A and B in 6 days = (6/10 + 6/20) = 18/20 = 9/10 Remaining work = (1 – 9/10) = 1/10 ∴ 1/10 of work will be completed by C in 3 days. |
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