The secretary of club can address envelops for a mailing in 40 minutes. Her
younger brother could do the entire job alone in 1 hour, assists her. How
long in minutes, would it take to address envelops if both work
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We are asked to find out how long it would take if they work together. ... This would give us the total amount of work completed by both of them in one hour. ... If Y completes of the work in 1 hour, then he will complete of the work in 40 hours. ... 'Printer A alone would finish the task in 60 minutes' This tells us that A works at a ...
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