Question

Find how far will Car B be from Car A after 3 hours
A car moves with a speed of 40 km/h for 15 minutes and then with a speed of
60 km/h for the next 15 minutes. Find the total distance covered by the car in
these 30 minutes.
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Answer 1

Explanation:

distance travelled by the car in first 15 minutes = speed in first 15 min * (15/60) hr

= 40*(15/60)

= 40 * (3/4)

= 30 km

distance travelled by the car in next 15 minutes = speed in next 15 min * (15/60) hr

= 60*(15/60)

= 60 * (3/4)

= 45 km

total distance covered by the car in these 30 minutes= 30+45 = 75km