in a km race a beats b by 28 metres or, Rances & Games of Skill, General Mathematics

Question:In a km race, A beats B by 28 metres or 7 seconds. Find A'S time over the course.

Answer Clearly, B covers 28 m in 7 seconds.

:.B,s time over the course` = (7/28 xx 1000)` sec = 250 seconds.

:. A's time over the course = (250 - 7) sec = 243 sec.

   = 4 min. 3 sec.

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In a km race, A beats B by 28 metres or 7 seconds. Find A'S time over the course.

Question:In a km race, A beats B by 28 metres or 7 seconds. Find A'S time over the course.

Answer Clearly, B covers 28 m in 7 seconds. :.B,s time over the course` = (7/28 xx 1000)` sec = 250 seconds. :. A's time over the course = (250 - 7) sec = 243 sec. = 4 min. 3 sec.