Wednesday, November 27, 2013

A car travels at an average speed of 50km/h to reach its destination which is 17km away. How long did it take a car to reach its destination?

Since you know the average speed is 50km/h, this means that:


if the car travels for 60 minutes, then it travels 50km. We can write this as 60n=50km


then we solve for n, which is 5/6.


Next, we want to find the blank for: if the car travels for x minutes, then it travels 17km. so we can write that as x(5/6)=17km. x=17/(5/6). x=20.4.


Therefore, it takes 20.4 minutes to travel 17km.

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