In a race of 1000 m, A can beat by 100 m, in a race of 800m, B can beat C by 100m. By how many meters will A beat C in a race of 400 m? Choose the correct choice from the following options: A) 122.9 m B) 127.5 m. C) 122.2 m D) 85 m E) 12289 m
When A runs 1000 m, B runs 900 m and when B runs 800 m, C runs 700 m.   When B runs 900 m, distance that C runs = (900 * 700)/800   = 6300/8= 
<gadget id="calculator">6300/8</gadget>
<output>1_575/2 = around 787.5</output>
787.5 m.   In a race of 1000 m, A beats C by   (1000 - 787.5)= 
<gadget id="calculator">  (1000 - 787.5)</gadget>
<output>212.5</output>
212.5 m to C.   In a race of 400 m, the number of meters by which A beats C= (400 * 212.5)/1000= 
<gadget id="calculator">(400 * 212.5)/1000</gadget>
<output>85</output>
85m.   Answer:85 m
<result>D</result>
In a race of 1000 m, A can beat by 100 m, in a race of 800m, B can beat C by 100m. By how many meters will A beat C in a race of 400 m?