Question

Rohit covers a distance of 30 km in 6 hours. he travelled partly on foot at 3 km/h and partly on bicycle at 9 km/h. what is that distance travelled on bicycle?

please answer with relevant answer ​

Answer 1

Answer:

Step-by-step explanation:

Distance = 30 km in 6 hours

Speed of walking =3km/hr

Speed on bicycle = 9km/hr

Distance covered on bicycle during the hour = x

Distance covered on walking during the hour = 30-x

                   Time = distance/speed

Now, time taken to cover 30 km = x/9 + 30-x/3 = 6

                x + 90-3x/9 = 6

                 90 - 54 = 2x

                 18 km = x

So, the distance travelled on bicycle is 18 km