In a 200m race, if A gives B a start of 25 meters, then A wins the race by 10 seconds. Alternatively, if A gives B a start of 45 meters the race ends in a dead heat. How long does A take to run 200m?
A.100 seconds
B.112.5 seconds
C.77.5 seconds
D.87.5 seconds
Answer:C
In a 200m race, if A gives B a start of 25 meters, then A wins the race by 10 seconds. Alternatively, if A gives B a start of 45 meters the race ends in a dead heat. How long does A take to run 200m?
A.100 seconds B.112.5 seconds C.77.5 seconds D.87.5 seconds