My printer can print a copy of the math notes in 9 minutes. Rose’s printer takes 15 minutes to print the s?
My printer can print a copy of the math notes in 9 minutes. Rose’s printer takes 15 minutes to print the same set of notes. How long would it take the two printers working together to print one copy of the notes?
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1/((1/9)+(1/15)) = .... (simplify)
My printer can print a copy of the math notes in 9 minutes. Rose’s printer takes 15 minutes to print the same set of notes. Time taken by the two printers working together to print one copy of the notes is given by 9*15/(9 + 15) minutes = 5 5/8 minutes ANSWER