Question

calculate the speed of a car if it covers a distance of 850km in 6hours​

Answer 1

Answer:

There are two ways to solve this problem on distance, speed and time.

First, you can use the formula time = distance / speed and speed can be solved by dividing 300 km by 6 h. You will get the value of time to be 5 hours after dividing 250 km by 50 km/h.

Second, you can use ratio and proportion. Using symbols d1 / t1 = d2 / t2

t2 = (d2 * t1) / d1

t2 = (250 km * 6 h) / 300 km and cancellation results to

t2 = 5/6 * 6

t2 = 5 hours is the time for the car to travel 250 km.

So the speed of the car is (v=s/t):

300/6 = 50km/h

Now that the car covers 250kms, the time taken is (t=s/v (derived from v=s/t)):

250/50 = 5.

So the time taken by the car to travel 250kms is 5h.