Shanu and Pawan working alone can finish a piece of work in 10 days and 15 days respectively. If shanu and pawan work together, but shanu leaves the job after 2 days. How much of the work is left then?
Answers
Answer: 10 days
Step-by-step explanation:
work done by Shanu in 1 day= 1/10
work done by pawan in 1 day= 1/15
now work done by both in one day = 1/10+1/15= 5/30 = 1/6
work done by both in 2 days = 1/6×2=1/3
now remain work = 1-1/3 = 2/3
now again time taken by pawan to do the work in one day 1/15
time taken by pawan to complete work= 1_15
time taken by pawan to complete remain work=
2/3_15×2/3= 10 days
Answer:
10 days
Step-by-step explanation:
work done by Shanu in 1 day= 1/10
work done by pawan in 1 day= 1/15
now work done by both in one day = 1/10+1/15= 5/30 = 1/6
work done by both in 2 days = 1/6×2=1/3
now remain work = 1-1/3 = 2/3
now again time taken by pawan to do the work in one day 1/15
time taken by pawan to complete work= 1_15
time taken by pawan to complete remain work=
2/3_15×2/3= 10 days