Beau4535 Beau4535

11-09-2017
Mathematics

contestada

Can someone please help with this question?

Beth leaves her home on her bike traveling down a long country road at the rate of 8mph. Her brother Brandon left 15 minutes later after Beth on his golf cart along the same country road traveling 12 mph. How long will it take Brandon to catch up with Beth?
I know the answer is 30 minutes but I have no idea how to get to the answer..
Can you please explain?

Respuesta :

11-09-2017

Ok so basically, Beth is traveling at 8MPH. And her bro leaves 1/4 of an hour later, this means she has cycled 8/4 = 2 miles. After another 15 minutes, Beth will have cycling 4 miles, while Brandon will have carted 12/4 = 3 miles. Repeat this, and Beth has cycled 6 miles in 45 minutes, and Brandon has also gone 6 miles in 30 minutes.

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