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Two trains X and Y start from Jodhpur to Jaipur and from Jaipur to Jodhpur respectively. After passing each other they take 4 hours 48 minutes and 3 hours 20 minutes to reach Jaipur and Jodhpur respectively. If X is moving at 45 km/hr, the speed of Y is
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- 60 km/hr
- 58 km/hr
- 54 km/hr
- 64.8 km/hr
Correct Option: C
Speed of Y |
= | √ | |
Time taken by X |
⇒ | = | √ | ||
y | 4 hours 48 min. |
⇒ | = | √ | ||
y | 288 minutes |
= | |
12 |
⇒ 10y = 12 × 45
⇒ y = | = 54 kmph | |
10 |