Question

If 3 men or 4women can reap a field in 43days how long will 7men and 5 women take to reap it

Answer 1

time taken by 7 M & 5 women = 12 days

another way is by using formula

W1×D1 = W2×D2

4×43 = 43/3×D2

D2 = 4×43×3/43

12