Math, asked by gitayada7, 10 months ago

A can do work 15 days b in 25days and c in 30 days how long will.they take to do the work of they together .step by step

Answers

Answered by TheLostMonk

4

7 1/7

Step-by-step explanation:

Total Work = LCM(15,25,30) = 150

their Efficiencies

A = 150/15 = 10 u/day , similarly B = 6 u/day

& C = 5 units/day

together = (150)/(10+6+5) = 7 1/7 days

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