In a 500 m race, P and Q have speeds in the ratio of 3 ∶ 4. Q starts the race when P has already covered 140 m.
What is the distance between P and Q (in m) when P wins the race?
1
20
2
40
3
60
4
140
In a 500 m race, P and Q have speeds in the ratio of 3 ∶ 4. Q starts the race when P has already covered 140 m.
What is the distance between P and Q (in m) when P wins the race?