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Decade: A decade refers to a period of ten years. Century: A century refers to a period of one hundred years. Millennium: A millennium refers to a period of one thousand years.
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...