A can complete a piece of work in 6 days and b in 9 days. They work at it together, but a is called off 4 days before the work is actually complete, find in what time the work was finished
Answers
Answered by
0
Answer:
6 days
Step-by-step explanation:
A takes 6 days
B takes 9 days
total work= lcm(6,9) = 18
efficiency of A= 18/6 = 3
efficiency of B= 18/9 = 2
they started working together and a is called off 4 days before the completion of the work
so for 4 days B worked alone = 4*2 = 8 work is done by B alone
remaining work= 18-8 = 10
so 10 work is completed by a and b together = 10/5 = 2 days
so the total time taken to complete the work is 2+4 = 6 days
Answered by
0
Answer:
Step-by-step explanation:
Attachments:
Similar questions