A car moves with $60 k m / h$ in first one hour and with $80 k m / h$ in next half an hour. Find average speed of car in total $1.5$ hours.

Open in App

Solution

$d i s t a n c e t r a v e l l e d i n f i r s t h o u r = 60 k m d i s t a n c e t r a v e l l e d i n s e c o n d h o u r = 80 \times \frac{1}{2} k m = 40 k m t o t a l d i s t a n c e = 60 + 40 = 100 k m t o t a l t i m e t a k e n = 1.5 h r a v e r a g e s p e e d = \frac{100}{1.5} = \frac{200}{3} k m / h$

Suggest Corrections

Similar questions

A car moves with a speed of 40 km/h for the first hour and then with a speed of 60 km/h for the next half hour and finally with a speed of 30 km/h for the next 1.5 hours. What will be the average speed of the car?

Q. A train has a speed of

60 k m / h

for the first one hour and

40 k m / h

for the next half hour.Its average speed in

k m / h

A car travels first 60 km in 2 hours and next 100 km in 3 hours. Find the average speed of the car.

By travelling at a speed of $48 k m / h$ , a car can finish a certain journey in $10$ hours. To cover the same distance in $8$ hours, the speed of the car should be

Join BYJU'S Learning Program

A car moves with 60km/h in first one hour and with 80km/h in next half an hour. Find average speed of car in total 1.5 hours.

distancetravelledinfirsthour=60kmdistancetravelledinsecondhour=80×12km=40kmtotaldistance=60+40=100kmtotaltimetaken=1.5hraveragespeed=1001.5=2003km/h

A car moves with $60 k m / h$ in first one hour and with $80 k m / h$ in next half an hour. Find average speed of car in total $1.5$ hours.