Question

9. X and Y can do a piece of work in 10 and 20 days,
respectively. They work together but 2 days before the
completion of the work, X leaves. In how many days, was
the work completed?
(a) 8 days (b) 9 days (c) 7 days
(d) 6 days​

Answer 1

Answer:

8 days

Explanation:

hope it's help you