SAT, 10.05.2021 14:00 kae97

A room has to be painted and worker A does 1/3 of the work then leaves. Next worker B does 1/4 of the remaining work and then leaves and finally worker C does 1/5 of the remaining work and then leaves. What fraction of the room still needs to be painted?
a)3/5
b)2/5
c)13/60
d)7/15

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A room has to be painted and worker A does 1/3 of the work then leaves. Next worker B does 1/4 of th...

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