Question

A car travels with speed 20km/h a
for 20 min and them with speed
40 km/h for 40 min. Findi-
a) Total Distance travelled
the
can
b) The total time of travel
2) The average speed of car.
6​

Answer 1

a) Total distance travelled

Answer - 20 min = 1/3 hour

20 km/hr * 1/3 hr = 20/3 km or 6 2/3 km

b) The total time of travel

Answer - 40 min + 20 min = 60 min = 1 hour

2) The average speed of car

Answer - $\frac{20 km/h + 40 km/h}{2}$ = 60/2 = 30 km/hr