Question
Jen and Andy have a bicycle race. Jen cycles at a speed of 18 km/h. Andy cycles at a speed of 21 km/h. If Andy lets Jen start 40 min before him, how long will Andy take to catch up with Jen?
3 m

Click button first when a symbol is required. X

Jen and Andy have a bicycle race. Jen cycles at a speed of 18 km/h. Andy cycles at a speed of 21 km/h. If Andy lets Jen start 40 min before him, how long will Andy take to catch up with Jen?