Question

if Suresh and Mahesh can do a work in 12 days, Mahesh and Ramesh in 15 days Suresh and Ramesh in 20 days how long will it Suresh Mahesh and Ramesh take to finish the work?

Answer 1

mahesh and suresh can do a work in =12days
mahesh and suresh 1 day work = 1/12
mahesh and ramesh can do work in = 15 days
their one day work= 1/15
suresh and ramesh can do work in = 20 days
their one day work = =1/20

so, the total time all of them take to complete the work is = 1/12+1/15+1/20 = 12/60

Answer 2

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