Physics, 31.12.2019 01:31 bookS4169

14. a person drives 100 km to his grandfather's house. on the
way to grandfather's, he drives half the time at 50 km/h and half
the time at 100 km/h. what is the total time of his trip?
a) 80 minutes.
b) 90 minutes.
c) 40 minutes.
d) 60 minutes.
e) 120 minutes.
the answer is a ,but when i solve it i get a. can you me ,

Answers: 2

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14. a person drives 100 km to his grandfather's house. on the
way to grandfather's, he drives h...

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