Posted by **rena** on Tuesday, May 14, 2013 at 8:58pm.

You and a friend are biking in opposite directions starting from the same point. You travel 108 feet every 8 seconds. Your friend travels 63 feet every 6 seconds.

How far apart are you and your friend after 15 minutes?

- math -
**Ms. Sue**, Tuesday, May 14, 2013 at 9:06pm
You:

108/8 = 13.5 feet a second

13.5 * 15 * 60 = 12,150 feet

Friend:

63/6 = 10.5 feet a second

10.5 * 15 * 60 = 9,450

12,150 + 9,450 = ?

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