Question

10 men or 20 women or 40 children can do a piece of work in 7 months. Then
5 men, 5 women and 5 children together can do half of work in:
(A) 8 months
(B) 4 months
(C) 5 months
(D) 6 months
(E) None of these​

Answer 1

Answer:

none of these

Step-by-step explanation:

(E) is answer that is none of these