Question

Scott likes to run long distances. He can run

\[20 \text{ km}\] in
\[85\] minutes. He wants to know how many minutes
\[(m)\] it will take him to run
\[52 \text{ km}\] at the same pace.

Answer 1

221 minutes

Explanation:

Scott can run 20km in 85mins. Representing this as a ration we get:

20km : 85mins

Let's divide both sides by 20 to find how long it takes him to run 1km:

(20/20) km : (85/20) mins

1km : 4.25mins

Now let's multiply both sides by 52 to find how long it takes him to run 52km:

(1x52) km : (4.25x52) mins

52km : 221mins

So, provided he runs at the same pace, it'll take him 221 minutes to run 52km.

Answer 2

20 km/85 min = 52 km/m min

20m = 4,420

m = 221 minutes