Question
Shiyun and Ben have a bicycle race. Shiyun cycles at a speed of 20 km/h. Ben cycles at a speed of 23 km/h. If Ben lets Shiyun start 45 min before him, how long will Ben take to catch up with Shiyun?
3 m

Click button first when a symbol is required. X

Shiyun and Ben have a bicycle race. Shiyun cycles at a speed of 20 km/h. Ben cycles at a speed of 23 km/h. If Ben lets Shiyun start 45 min before him, how long will Ben take to catch up with Shiyun?