Question : D alone can do a work in 20 days and E alone can do the same work in 25 days. If they work on it together for 8 days. then the fraction of the work that is left is:
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution :
D alone can do a work in 20 days and E alone can do the same work in 25 days.
D's 1 day's work =
E's 1 day's work =
(D + E)'s 1 day's work =
(D + E)'s 8 days work =
Work left after 8 days =
Hence, the correct answer is