Question

9) 20 men can construct a building in 40 days. How long will it take 10 men to do th
work?
(A) 50 days
(B) 60 days
(C) 70 days
(D) 80 days​

Answer 1

Answer:

60 days .................

Answer 2

Step-by-step explanation:

(D) 80 days

..... ............