CBSE Class 7 Answered
Your car moves with a speed of 40 km/h for 10 minutes and then with a speed of 60 km/h for the next 15 minutes. What is the total distance covered by the car?
Asked by Topperlearning User | 13 May, 2015, 09:28: AM
Expert Answer
Distance covered in first 10 min. = 40 x (10/60) km. = 20/3 km.
Distance covered in second 15 min. = 60 x (15/60) km. = 15 km.
Total distance = (20/3) + 15 = 65/3 = 21.66 km.
Answered by | 13 May, 2015, 11:28: AM
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