How many double jump-seats are onboard the aircraft?

The correct answer is based on the typical configuration of a Ryanair aircraft, which commonly operates the Boeing 737-800. In this specific aircraft type, the double jump-seat configuration is designed to accommodate additional crew members during operations, such as boarding and in-flight service. The presence of three double jump-seats allows for effective crew management, ensuring that there are enough crew members available to assist both on the ground and during the flight. This number optimizes safety and service efficiency, which is crucial in the budget airline model that Ryanair adheres to.

Fewer double jump-seats would limit the number of crew members available to manage passenger needs, impacting operational safety and service expectations. Therefore, the presence of three double jump-seats is a well-considered part of the aircraft’s design, aligned with the airline's requirements and operational efficiency standards.