Mathematics, 08.09.2021 06:00 BeverlyFarmer
Jennifer can sew 120 masks in 20 hr and Janice can sew 120 masks in 30 hr. How many hours does it take them to sew 120 masks if they work together?
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Jennifer can sew 120 masks in 20 hr and Janice can sew 120 masks in 30 hr. How many hours does it ta...
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