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- How many minutes does Bajira take to cover a distance of 400 m, if he runs at a speed of 20km/hr?
Question 1:
How many minutes does Bajira take to cover a distance of 400 m, if he runs at a speed of 20km/hr? A. 2 min
B. 2(1/6)min
C. 1(1/6)min
Feedback Bajira's speed = 20 km/hr = (20 × 5/18) m/sec = 50/9 (m/sec)
Time taken to cover 400 m = 400 × (9/50)sec = 72 sec = 1 (12/60)min = 1(1/6)min
Time taken to cover 400 m = 400 × (9/50)sec = 72 sec = 1 (12/60)min = 1(1/6)min
D. 5 min
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