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Q:
A) 5min,4sec | B) 4min,3sec |
C) 2min,3sec | D) 3min,4sec |
Answer: B) 4min,3sec
Explanation:
Explanation:
B covers 28 meters in 7sec. So, B's time over the course = (7/28)*100 =250 sec.
Whereas A's time over the course = 250 -7 = 243 sec.
i.e A's time over the course is 4min , 3 sec.