1.

In a500 mrace , a givesb astartof 6 andbeatby 20m.inanotherof 500m ,beatsb by8 (1)/(7) s . Findtheirspeeds

Answer»

a's SPEED= 11 m/sb,s speed= 10 m/s
A'sspeed= 1m/s ,B'sspeed= 9.33m/s
A.s speed

ANSWER :B


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