This is possible in a number of ways. Which way is the most advantageous for you depends on your travel behavior. Don't you travel by public transport that often? Pin your ticket at the bus driver. Indicate to the bus driver where you want to go and pay for your ticket with PIN or credit card.
Here you will find the prices of individual bus tickets.
Prefer to buy a ticket with cash? That is possible at
these points of sale.
Do you travel regularly by public transport? Then an OV chip card is cheaper.
Here you will find more information about traveling with an OV chip card. You can purchase an anonymous OV chip card for € 7.50 at a store near you.
You can easily buy your bus ticket in the
Keolis / Syntus app. You pay for this with iDEAL and activate it when you want to travel. During boarding, you show the driver the ticket on your smartphone.