Correct Answer - Option 4 : 456 km
Given:
Speed of train = 2 times the speed of bike
Time taken by bike to cover 570 km = 15 hours
Formula used:
Speed = Distance/Time taken
Calculation:
Speed of bike = (570/15) km/hr = 38 km/hr
Speed of train = (2 × 38) = 76 km/hr
Distance travelled by train in 6 hours = (76 × 6) km = 456 km
∴ Train can cover 456 km in 6 hours