pls help me to solve this question ch 13 time a d work
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Answer:
120 hrs
Step-by-step explanation:
Let 'x' be the number of hours in which C completes his work.
work done by A in one hour = 1/15
work done by B in one hour = 1/20
work done by C in one hour = 1/x
Work completed by by them together in one hour = 1/15 + 1/20 +1/x
we know that whole work is completed in 8hrs
Therefor
8 = 60x/60 + 7x
x = 120 hrs
Time taken by C to complete his work is 120 hrs
Hope this will be helpful to you .!!
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