Question:
If 24 people can build 90 identical walls in 25 days, then how many more days will 27 people require to build 162 such walls?
यदि 24 लोग 25 दिनों में 90 समान दीवारें बना सकते हैं, तो 27 लोगों को ऐसी 162 दीवारें बनाने के लिए कितने और दिनों की आवश्यकता होगी?
Options:
- a) 14
- b) 13
- c) 15
- d) 16
- a) 14
- b) 13
- c) 15
- d) 16
correct answer : c)
Explanation:
Using formula (M1 * D1)/W1 = (M2 * D2)/W2: (24 * 25)/90 = (27 * D2)/162 => 600 / 90 = (27 * D2)/162 => 20/3 = D2 / 6 => D2 = (20 * 6) / 3 = 40 days. More days required = 40 – 25 = 15 days.
सूत्र (M1 * D1)/W1 = (M2 * D2)/W2 का उपयोग करते हुए: (24 * 25)/90 = (27 * D2)/162 => 600 / 90 = (27 * D2)/162 => 20/3 = D2 / 6 => D2 = (20 * 6) / 3 = 40 दिन। आवश्यक अतिरिक्त दिन = 40 – 25 = 15 दिन।