Question

If the speed of bus increased by 5 km/hr from its normal speed,it takes 2h less for journey of 300 km the normal speed of bus is

Answer 1

Let total time taken=x hrs

To go 300km the bus needs=x hrs

.•.To go 1 km it needs =x/300 hrs

Speed=x/300 km/hr

Speed increased by=5 km/hr

.•.Present speed=(x/300 + 5) kmph

Rest part you can do on your own I hope