A can do work in 25 days and b can do it in 20 days. After doing work together for 5days A goes away. In how much days did B complete the work
Answers
Answer:
11 days
Step-by-step explanation:
Time taken by a to complete the work = 25 days
Time taken by b to complete the work = 20 days
Hence, work done by a in 1 day = 1/25
Hence, work done by b in 1 day = 1/20
Work done by both in one day = 1/25 + 1/20
= 9/100
Work done in 5 days by both = (9/100)*5
= 9/20
Remaining work = 11/20
Now, a leaves
Hence, time taken by b to complete the work = Remaining work * time taken by b to complete the work
= (11/20)*20
= 11 days
Answer:
Step-by-step explanation:
(5/25) + (x/20) = 1