A can do a piece of work in 40 days and B in
60 days. Both of them start working together
and 4 days before the scheduled completion,
A drops out. By how many days is the work
extended beyond the normal schedule?
Answers
Answered by
2
Answer:
30.67 days. this is the answer for Ur question
Answered by
2
Answer:
6 days
Explanation:
A = 40 days
B = 60 days
total work =( LCM of 40 and 60) = 120
a day's work of A = 120/40= 3
a day's work of B = 120/60= 2
if A and B work together then work complete in 120/5 = 24 days
A left the work before 4 days ...
so A and B work together for 20 days ....
work done = 20 × 5 = 100
work left = 120-100 = 20
20 work done by B
20/2 = 10 days ....
so extended time = 30-24 = 6 ..(answer)
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