A car moves with a speed of 40km/h for 15 minutes and then with a speed of 50 km/ h for the next 12 minutes.the total distance covered by the car is
a 100km
b 35km
c 20km
d 10km
plz help me
Answers
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Answer:
25 km
Explanation:
Speed of car in first 15 minutes = 40 km/h
Distance covered = speed × Time taken
60 minutes = 1 hour
15 minutes = 60
15hour
Distance covered = 240× 6015
=10km
Speed of car in next 15 minutes = 60 km/h
Distance covered = 60×
60
15
=15km
∴ Total distance covered = (10+15)km = 25 km
∴ 25 km is correct
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