Mathematics, 31.01.2020 04:56 ozzy1146

Fast not sure on this question. jeff can weed the garden twice as fast as his sister julia. together they can weed the garden in 3 hours. how long would it take each of them working alone?
a) 4.5 hours; julia 9 hours
b) 7.5 hours; julia 15 hours
c) 4.5 hours; julia 2.25 hours
d) 0.5 hours; julia 1 hours

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Fast not sure on this question. jeff can weed the garden twice as fast as his sister julia. together...