A crane does a piece of work in 45 days, whereas the crane and bulldozer can do the work in 18 days. Crane and bulldozer combine to do the work but unfortunately, after 9 days
the efficiency of the crane is reduced to 50%. What is the total time taken by them to complete the work?
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Answered by
6
Answer:
Answer is given in the picture
Step-by-step explanation:
Maybe the 34days will become 35days
If there is such two options your answer is 35days
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1
Answer:
20.25 days
Step-by-step explanation:
Total work= 90 unit
efficiency of crane = 2 unit
efficiency of both together = 5
45/4 = 11.25 days
9 + 11.25 = 20.25 days
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