Answer:
600 feet
Step-by-step explanation:
Let them end the race when both are together.
Hence, we have to find when Olivia caught up to William.
Olivia's rate is 20 ft / sec
William's rate is 15 ft / sec
Olivia catches up William at 20 - 15 = 5 feet / sec
Since william is 150 feet ahead, so it would take Olivia
150/5 = 30 seconds to catch up to william
That would be the end of the race (tie).
So, how far does Olivia go in 30 seconds (at 20 feet per second) ??
30 * 20 = 600 feet
We can say the finish line was at 600 feet from Olivia
