Question:In a 200 metres race A beats B by 35 m or 7 seconds.A's time over the course is : 

A 40 sec 
B 47 sec 
C 33 sec 
D None of these 

+ Answer
C 

+ Explanation
B runs 35 m in 7 sec.

:. B covers 200 m in` (7/35 xx 200)`

                  `= 40 sec.`

:. B's time over the course = 40 sec

A's time over the course = (40 - 7) sec 

    `= 33 sec.`

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Irin Moni

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