Question

Nicole left the White House and traveled toward the lake at an average speed of 45 km/h. Sometime later Cody left traveling in the same direction but at an average speed of 60 km/h. After traveling for three hours Cody caught up with Nicole. How long did Nicole travel before Cody caught up?

Answer 1

Explanation:

To find total distance from Cody

Speed = 60 km/h

Time = 3 h

Distance = Speed x Time

Distance = 60 km/h x 3h = 180 km

Cody travel 180km to catch up with Nicole

To find Nicole Time of travel:

180 km = 45 km/h x T

Time = 180 km / 45 km/h = 4 h

It takes 4 hrs for Nicole to travel 180 km

Therefore Cody start 1 hr later