A passenger train leaves Calcutta at 4 PM and travels at the rate of 30 kilometres an hour. The mail train leaves Calcutta at 9 PM and travels, on a parallel line of rails, at the rate of 45 km an hour, when will the second train overtake the first?
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Q:
A passenger train leaves Calcutta at 4 PM and travels at the rate of 30 kilometres an hour. The mail train leaves Calcutta at 9 PM and travels, on a parallel line of rails, at the rate of 45 km an hour, when will the second train overtake the first?
- 110 hrs after the first train startfalse
- 212 hrs after the second train startsfalse
- 310 hrs after the second train startstrue
- 412 hrs after the first train startsfalse
- 5None of thesefalse
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