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Let the total number of children be x. Then, => x×(20% of x) = 125 => x2= (125 × 100)/20 =>x2=625 => x = 25 Number of sweets received by each child = 20% of 25 = 5
10 persons begin to work together on a job, but after some days, 4 persons leave. As a result, the job, which could have been completed in 40 days, was ...
A certain number of men can finish a piece of work in 40 days. If there were 4 men less, it would take 4 days more for the same work to be finished. How...