A runs 1 ¾ times as fast as B. if A gives B a start of 84 m, bow far must winning post be so that A and B might reach it at the same time?	Pick one.
A) 85 m
B) 98 m
C) 196 m
D) 123 m
E) 213 m
Ratio of the rates of A and B = 7/4 : 1 = 7 : 4.   So, in a race of 7 m, A gains 3m over B.   :. 3 m are gained by A in a race of 7 m.   :. 84 m are gained by A in a race of (7/3 x 84) m = 196 m.   :. Winning post must be 196 m away from the starting point.   ANSWER 196 m 196 m
<result>C</result>
A runs 1 ¾ times as fast as B. if A gives B a start of 84 m, bow far must winning post be so that A and B might reach it at the same time?