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If A, B and C completes a work in 5,7 and 9 days respectively then together in how many days they will complete the work?1). 315/143 days2). 30/11 days3). 50/11 days4). 20/11 days |
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Answer» Solution In one DAY, WORK done by them together will be = 1/5 + 1/7 + 1/9 = 143/315 |
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