Question

A car travels with 30km/hr for 30min and then with a speed of 40 km/hr for 1hour. Find: the total distance travelled by the car

Answer 1

Answer:

total distance is 55km

Explanation:

distance travelled by car with speed 30kmph is

 DISTANCE=SPEED x TIME TAKEN

speed=30 , time=30min=1/2hr

DISTANCE=30x1/2=15km

distance travelled by car with speed 40kmph is

 DISTANCE=SPEED x TIME TAKEN

 speed=40kmph , time=1hr

DISTANCE =40x1 =40km

TOTAL DISTANCE TRAVELLED BY CAR IS 15km+40km=55km

Answer 2

Answer:

55 kilometres

Explanation:

Given :

• Car travels with 30 km/hr for 30 minutes

• Car travels with 40 km/hr for 1 hour

To find :

• Distance travelled by the car

Distance = speed × time

Distance in first interval = 30×1/2

Distance in first interval = 15 km

Distance in second interval = 40×1

Distance in second interval = 40 km

Total distance = distance in first interval + distance in second interval

Total distance = 15+40

Total distance = 55 km

The total distance travelled by the car is equ to 55 kilometres