28. Three runners Ajay , Bharath and Charan run a race with Ajay finishing 20 meters ahead of Bharath and 34 ahead of Charan , while Bharath finishes 21 meters ahead of Charan . Each runner travels the entire distance at a constant speed. What was the length of the race?
A. 40 meters B. 50 meters C. 60 Meters D. 70 meters
Correct Answer: C
14 m 20 M
C<---------------àB<------------------àA
This is what the race looks like when A reaches the end. Notice that B has already created a distance of 14 m between himself and C. When B reaches the end point, ie. after another 20 m, distance between him and C is 21 m i.e. another 7 m.
21 M
<------------------------------------à
_____________________________________
C B
So in every 20 m B is creating a distance of 7 m between himself and C. To create a distance of 21 m between himself and C, he must have run a total of 60m. The race must be of 60 m.
Sir, Can you explain it in some more simple way
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