जॉइन Examsbookउत्तर : 4. "2:1"
If 5 men and 2 boys working together, can do four times as much work per hour as a man and a boy together. Find the ratio of the work done by a man and that of a boy for a given time ?5
प्र: If 5 men and 2 boys working together, can do four times as much work per hour as a man and a boy together. Find the ratio of the work done by a man and that of a boy for a given time ?
- 11:2false
- 21:3false
- 33:1false
- 42:1true
- उत्तर देखेंउत्तर छिपाएं
- Workspace
उत्तर : 4. "2:1"
व्याख्या :
Answer: D) 2:1 Explanation: 5M + 2B = 4(1M + 1B) 5M + 2B = 4M + 4B 1M = 2B The required ratio of work done by a man and a boy = 2:1