In a 500 m race, the ratio of two competitors A and B's speeds is 3:4. A begins at a distance of 140 metres. Then A triumphs by:
A. 60 m
B. 40 m
C. 20 m
D. 10 m
Answer:C
In a 500 m race, the ratio of two competitors A and B's speeds is 3:4. A begins at a distance of 140 metres. Then A triumphs by:
A. 60 m B. 40 m C. 20 m D. 10 m