Question

3.
24 men working at 8 hours per day can do a piece of work in 15 days. In how many days
can 20 men working at 9 hours per day do the same work ?
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Answer 1

24men work at 8 hour in person day 24×8=192 / 15 days in 192 day can 20 men working 9 hour 20×9 =180 no