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. The total distance covered by
the car is:
(i) 100 km (ii) 25 km
(iii) 15 km (iv) 10 km
Topic: Motion and Time
Answers
Answered by
0
Hello!
The answer to your question is option (ii); that is 25 km.
Do you want to know how? Let's first convert these minutes into decimals to make our calculations easier. 15 minutes is 1/4 of an hour, that 0.25.
The distance covered by the car at speed of 40 km/h for 15 minutes:
40*0.25 = 10 km
The distance covered by the car at speed of 60 km/h for 15 minutes:
60*0.25 = 15 km
10 km + 15 km = 25 km.
I hope this helps you.
With Regards,
Vishnu Vignesh
Answered by
4
Distance = Speed × Time = (40 × 0.25) km = 10 km. Car's speed = 60 km/h. Time = 15 mins. = 0.25 hrs.
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