जॉइन Examsbookउत्तर : 4. "320 m"
Two trains are moving in the same direction at 72 kmph and 36 kmph. The faster train crosses a girl sitting at window seat in the slower train in 32 seconds. Find the length of the faster train ?5
प्र: Two trains are moving in the same direction at 72 kmph and 36 kmph. The faster train crosses a girl sitting at window seat in the slower train in 32 seconds. Find the length of the faster train ?
- 1170 mfalse
- 2100 mfalse
- 3270 mfalse
- 4320 mtrue
- उत्तर देखें
- Workspace
उत्तर : 4. "320 m"
व्याख्या :
Answer: D) 320 m Explanation: Relative speed = (72 - 36) x 5/18 = 2 x 5 = 10 mps.Distance covered in 32 sec = 32 x 10 = 320 m. The length of the faster train = 320 m.