Verified answer

Answer:

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Step-by-step explanation:

a car finish a certain journey of 10 km in = 48 km/h. 10 h = 48 * 10 = 480. 8 h = 480/8=60. 60-48=12 km/h.

Answer:

Let's assume the initial distance of the journey is "D" kilometers.

We know that the car takes 10 hours to cover this distance at a speed of 48 km/hr.

Distance (D) = Speed × Time

D = 48 km/hr × 10 hours

D = 480 km

Now, we want the car to cover the same distance in 8 hours. Let's represent the new speed we need to achieve this as "V" km/hr.

Distance (D) = Speed × Time

480 km = V km/hr × 8 hours

Now, we can solve for the new speed "V":

V = 480 km / 8 hours

V = 60 km/hr

So, the car's speed needs to be increased to 60 km/hr in order to cover the same distance in 8 hours. To calculate the increase in speed, we subtract the initial speed from the new speed:

Increase in speed = New speed - Initial speed

Increase in speed = 60 km/hr - 48 km/hr

Increase in speed = 12 km/hr

Therefore, the car's speed should be increased by 12 km/hr to cover the same distance in 8 hours.