Question
A can run a kilometer race in 4 1/2 min while B can run same race in 5 min. How many meters start can A give B in a kilometer race, so that the race mat end in a dead heat?
Answer: Option D
A CAN GIVE B (5 MIN – 4 1/2 MIN) = 30 SEC START.
THE DISTANCE COVERED BY B IN 5 MIN = 1000 M.
DISTANCE COVERED IN 30 SEC = (1000 * 30)/300 = 100 M.
A CAN GIVE B 100M START.
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A CAN GIVE B (5 MIN – 4 1/2 MIN) = 30 SEC START.
THE DISTANCE COVERED BY B IN 5 MIN = 1000 M.
DISTANCE COVERED IN 30 SEC = (1000 * 30)/300 = 100 M.
A CAN GIVE B 100M START.
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