Q310
20 man can finish a work in 30 days. They started working, but 4 men left the work after 10 days. In how many days would the work be completed?
A.
30
B.
25
C.
35
AnswerD.
28
Answer: Option C
Solution
Answer: Option C
Solution:
Total work = 30 × 20 = 600After 10 days = 20 × 10 = 200
Remaining work = 600 - 200 = 400
4 men left, remaining = 16 men
16 × D = 400
D =
D = 25 days
Total days = 25 + 10 = 35 days