How to solve this velocity problem?

In  Geometry Dash , the player’s cube moves at a constant velocity of 4 meters per second (m/s) when running through a level. The player encounters a series of spikes spaced 10 meters apart. If the player needs to jump over the spikes, and each jump takes 0.5 seconds, how many jumps will the player make during a 20-second run, and what is the total distance the player covers in that time?