Question 95

Nitin rides a bicycle at the speed of 15 kms/hr, but stops for 10 minutes to take rest every 20 kms. How much time will he take to cover a distance of 150 kms, ?

Solution

Nitin takes rest for 10 minutes after every 20 km

=> For a period of 150 km, he will take rest = $$\frac{150}{20} = 7.5$$ = 7 times

=> Rest period = 7 * 10 = 70 minutes

Time taken to cover 150 km at a speed of 15 kmph

= $$\frac{150}{15} = 10$$ hrs

$$\therefore$$ Total time taken including rest period = 10 hrs + 70 minutes

= 11 hrs 10 minutes

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