To cover a distance of 240km, a car has to increase the speed by 5km/hr to reach in time. If the time lost was 40 minutes during traffic jam, find the original speed of the car.

Step-by-step explanation:

Given That

To cover a distance of 240km, a car has to increase the speed by 5km/hr to reach in time. If the time lost was 40 minutes during traffic jam, find the original speed of the car.

.

increased speed of car = 5km/hr ... (speed 1st)

distance travelled = 240km

speed = distance travelled / time taken

= 240 / 40

= 6

thus,

speed = 6km/hr ... (speed 2nd)

.

therefore original speed

= speed 2nd - speed 1st

= 6-5

= 1

Ans. thus, the original speed of the car is 1km/hr.