जॉइन Examsbookउत्तर : 2. "48 sec"
Two goods trains each 520 m long, are running in opposite directions on parallel tracks. Their speeds are 42 km/hr and 36 km/hr respectively. Find the time taken by the slower train to cross the driver of the faster one ?5
प्र: Two goods trains each 520 m long, are running in opposite directions on parallel tracks. Their speeds are 42 km/hr and 36 km/hr respectively. Find the time taken by the slower train to cross the driver of the faster one ?
- 160 secfalse
- 248 sectrue
- 345 secfalse
- 434 secfalse
- उत्तर देखें
- Workspace
उत्तर : 2. "48 sec"
व्याख्या :
Answer: B) 48 sec Explanation: Relative speed = 42 + 36 = 78 km/hr = 653 m/s Distance = (520 + 520) =1040 mts. Time = 1040×365= 48 sec