Question

Julie was able to walk 16 km through the zoo in 6 hours. How long will it take her to walk 24 km through the zoo?

Answer 1

To find the answer, we can first find her average walking speed:

Distance/ time taken = speed (km/h)

In this case:

16/6
=8/3km/h

To find the time it will take:

Distnace÷Speed = time

As her distant is 24km and her average speed is 8/3:

24÷ 8/3
=24 x 3/8
= 8×3 x 3/8×1

When factorized, 8 is taken away from 8/3

=3 x 3/1
=9 hours

Therefore the answer is 9 hours.

Hope it helps!

Answer 2

9 hours

Explanation:

We can us proportions to solve this problem. Take the distance and put it over the time

16 km 24 km

---------- = -----------

6 hours x hours

Using cross products

16x = 6*24

16x = 144

Divide by 16 on each side

16x/16 = 144/16

x =9

It will take 9 hours