Question

A car moves with a speed of 60 km h–1 for 20 min and then at a speed of 30 km h–1 for the next
20 min. The total distance covered by the car is
(A) 10 km (B) 20 km (C) 30 km (D) 40 km

Answer 1

Answer:

the distance covered by the car in first case = 60 * 20/60

= 20 km

the distance covered by the car in the second case = 30 * 20/60

= 10 km

hence the total distance covered = 40 km

Answer 2

Answer:

Option (c) 30km

Explanation:

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