Question

20 men can finish a work in 30 days. On completion of
10 days. 10 men leave work. Remaining men work for
next 10 days. At the end of 20 days it is decided to
complete the work in remaining 10 days. How many extra
men and required?
(a) 20
(b) 25 (c) 15
(d) 10​

Answer 1

20 men can finish a work in 30 days. on completion of 10 days, 10 men leave work. remaining men ..

Answer 2

Answer:

15

Step-by-step explanation: