Question

and B can do a piece of work in 18 days, B and work in 18 days, B and C can do it in 24 days while C and A can finisha it in 36 days. In how many days can A, B, C finish it, if they all work together?​

Answer 1

1 + B = 18 days

+ B = 18 daysB+C =24 days

24 daysC+A =36 days If total work is 72 then

36 days If total work is 72 thenA + B efficiency (per day work) = 4

4B + C efficiency (per day work) = 3C + A efficiency (per day work)All together per day work

So, total days required by

So, total days required byA + B + C = 72/9

So, total days required byA + B + C = 72/9= 8 x 2

So, total days required byA + B + C = 72/9= 8 x 2A + B + C = 16 daysThey will finish the work in 16 days.

Hope it helps you