जॉइन Examsbookउत्तर : 1. "7"
A work which could be finished in 11 days was finished 4 days earlier after 4 more men joined. The number of men employed was ?5
प्र: A work which could be finished in 11 days was finished 4 days earlier after 4 more men joined. The number of men employed was ?
- 17true
- 28false
- 39false
- 410false
- उत्तर देखें
- Workspace
उत्तर : 1. "7"
व्याख्या :
Answer: A) 7 Explanation: As the work is sameM1D1 = M2D2 Here Let the number of men employed was M=> 11M = 7(M+4)=> 11M - 7M = 28=> M = 7