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- In a race of 300 metres A rates B by 15 metres or 5 seconds, Hoe much time A take to complete the race?
Question 1:
In a race of 300 metres A rates B by 15 metres or 5 seconds, Hoe much time A take to complete the race? A. 105 sec.
B. 100 sec.
C. 95 sec.
Feedback From the question it is clear that speed of B = 15/5 = 3 m/s
the time taken by B to cover 300 m = 300 / 3 = 100 sec.
Hence, Time taken by A to complete the race = 100-5 = 95 sec.
the time taken by B to cover 300 m = 300 / 3 = 100 sec.
Hence, Time taken by A to complete the race = 100-5 = 95 sec.
D. 90 sec.
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