Question

A complete a work in 20 days while B is 25 percentage more efficient than A.B works for 6 day and and left the remaining work is completed by C in 15 days .Find in how many days C can complete a whole work alone.

Answer 1

Answer:

Efficiency of A = 100

Efficiency of B = 125

= 4:5

Therefore Ratio of time taken is 5:4

Here 5 corresponds to 20 days so 4 will equals 16 days.

Total work will be 80

B alone completed 30 work in 6 days.

So remaining work is 50.

Therefore efficiency of c can be found out. Which equals 10/3.

So time taken by C equals

80*(3/10)

= 24 days

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