Question
6 skilled workers can complete a work in 4 days. After
three days 3 more skilled workers joined them. How many days will they now take to complete the remaining work?Solution
Total work: 6 workers × 4 days = 24 worker-days Work done in 3 days by 6 workers= 6 workers × 3 days = 18 worker-days Remaining work= 24-18=6 worker-days New total workers= 6+3= 9 workers Days to complete remaining work=6/9 worker-days =2/3 days
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