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Given: A completes work in 15 days → Work per day = 1/15 B completes work in 8 days → Work per day = 1/8 B & C together complete work in 4 days → Work per day = 1/4 C's Work per Day A + C’s Work per Day
LCM of 15 and 8 = 120 :
So, A + C complete work in: x = 120/23 A + B’s Work per Day
So, A + B complete work in : y = 120/23 To find (x/y)
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