Question

I need a perfect and total explanation answer!
Suppose! Sascha, Champion bicyclist, wants to see how far he can travel in an hour. He starts timing himself when he reaches a speed of 45 miles per hour. He maintains this speed for 10 minutes. Sascha starts to feel tired and slows down to 20 miles per hour for the next 5 minutes. He then reduces his speed to 25 miles per hour for the next 30 minutes. Finally Sascha feels exhausted as he finishes the last 15 mins at 15 miles per hour.
Ques.
1. How far did Sascha travel in his 1-hour ride? Explain.

Answer 1

45 * 1/6 + 20* 1/12 + 25 * 1/2 * 15*1/4

calculate this you will get your answer

Answer 2

its 25*1/2 + 15*1/4

Answer 3

ahh! i didn't get it! :S