Question

if suresh and mahesh can do work in 12 days, mahesh and ramesh in 15 days, suresh and ramesh in 20 days, how long will each suresh,mahesh and ramesh take to finish the work
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Answer 1

Answer:

Step-by-step explanation:

Inshort s+m Do work in one day =1/12

Similarly m+r =1/15 in one day

s +r=1/20 in one day

If the three work together

s+m + m+r + r+s = 1/12 + 1/ 15 + 1/20

2(s+m+r) = 1/5

s+m+r = 1/10 in one day

Total work as one part , x as number of days then

1/10 * x = 1

x= 10

Therefore they can complete in 10 days