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5 workers take 6 days to complete a work.How many days 3 workers need to do the smae work? |
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Answer» 1st part We have, Worker W 1 =5 Weed a field in DAYS=D 1 =12DAYS If, TAKE worker W 2 =6 Then, Days D 2 =? Then, we know that, W 1 D 1 =W 2 D 2 5×12=6×D 2 D 2 = 6 5×12 D 2 =10days 2nd Part, If workerW 3 =15 Then, Days D 2 =? Then, we know that, W 1 D 1 =W 3 D3 5×12=15×D 3 D 3 = 155×12 D 3 =4days Hence, this is the answer. |
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