18 men completed a work in 14 days. 3 women =2 men (given)
Men
Women
=
3
2
Total work =18 men ×14 days =18×3×14 =756 According to the question, ∴3 more men added after 4 days 756=(5 men +6 women )4+x(8 men +6 women ) ⇒756=(5×3+6×2) 4+(8×3+6×2)x ⇒756=27×4&+36×x ⇒756−108=36x ⇒648=36x x=18 days Total number of days to complete work is =18 days +4 day =22 days.