
Races  Quant/Math  CAT 2013
Question 4 the day:
September 09, 2003
The question for the day is from the topic of Races.
 A can give B a start of 50 metres or 10 seconds in a kilometer race. How long does A take to complete the race?
(1) 
200 seconds 
 
(2) 
140 seconds 
(3) 
220 seconds 
 
(4) 
190 seconds 
Correct Answer  (4)
Solution:
A can give B a start of 50 metres or 10 seconds in a 1000 m race.
That is, B takes 10 seconds to run 50 metres.
Therefore, B will take (10/50) * 1000 = 200 seconds to run 1000 metres.
A who can give B a start of 10 seconds will take 10 seconds lesser to run the 1000m.
Hence, the time taken by A = 190 seconds.



