Given: Work done by Men = 1.5 × work done by women Women Manufactures jeans in a day = 20 Units Total work to be done = 1200 units Formula used: Total work done = Work done by men + Work done by women Time taken = Total work / rate of work (units/day) Calculation: Work done by women = 20 units/day ⇒ Work done by men = 1.5 × 20 ⇒ Work done by men = 30 units/ day Now, Total work = 1200 units ⇒ Work done by both men and women = 20 + 30 ⇒ 20 + 30 = 50 units/day ⇒ Time taken = 1200 / 50 ∴ Time taken = 24 days Note: (Men and women working in the factory are equal in number.)