DRDO Multi tasking staff Model paper 2

Five men or ten women can complete a job in 20 days,
⇒ m = 2w
⇒ Total work = 5 × 20 = 100 units
⇒ 3 men and 4 women = 3m + 4 × (m/2) = 5m
⇒ 3 men and 4 women can complete work in 100/5 = 20 days