Question

On a certain trip, a traveler is driving at a constant rate of 85 km/hour. At that rate, the number of minutes needed to complete the last 43 kilometers of the trip is between

a. 20 and 25
b. 25 and 30
c. 30 and 35
d. 35 and 40
e. 40 and 45

Answer 1

The answer is c because 30 and 40

Answer 2

30 and 35

Explanation:

Distance covered of 85km=1hour=60minutes

Distance covered of 1km=60minutes/85km

Distance covered of 43km=60mins/85km × 43mins

= 30.35mins

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