In this task, you're given an article and an answer. Your task is to generate the question for the answer based on the given article.
Example: Article: There are a lot of public libraries in Britain. These libraries have more than one hundred and fifteen million books, not including those libraries of public schools. Public libraries not only lend books, music records but also help children, patients in hospitals and others to get special play readings, film shows and so on. The first public libraries were founded in about the year 1850. Today's public libraries usually have a reading-room, a lending room and a reference room. The greatest and most famous library in Britain is that of the British Library in London. It was founded in 1973 and has over 10, 000, 000 books. It has nearly every magazine, newspaper and book published in Britain and other parts across the world.
Answer: 10,000,000 or less.
Example solution: How many books are there in the British Library?
Example explanation: In the Article, 10,000,000 is mentioned for the number of books available in the British Library, so this is a good question.

Problem: Article: The Outdoor Centre Opening times Water sports: 10 a.m. -- 6 p.m. Play Park: 10 a.m. -- 5:30 p.m. Windsurfing -- One-day course Beginner windsurfing courses are offered on Saturdays and Sundays when the weather is good enough. Learning to windsurf is a lot of fun. The excitement when you sail across the water for the first time is not easily forgotten. Boards with small sails are available for beginners. Course fee: PS32 for adults; PS16 for children under 16 (this includes all equipment) One-day adventure course This is the opportunity you have been waiting for. Come and try sailing, climbing, surfing and archery . This course is intended to introduce outdoor activities to adults in a fun and leisurely manner. You do not need to be very fit or to have previous experience with the activities. All you need is to be interested. Course fee: PS22.50 Play Park The Play Park is suitable for children from two to ten years of age. It is one of the best of its type in the country. It has sand and water playgrounds, slides, large pool balls, a play castle and much, much more. Next year the center will open Play Palace and Play Ship. Summer adventure holidays Sailing, Climbing, Windsurfing, Fun Games Fee: PS50 for adults; PS30 for children under 16 Statement: Safety is of primary importance at the Outdoor Center. All staff members are fully trained in first aid, and qualified to teach the activities on offer. We also make sure that all children only take part in activities that are suitable for their ages and physical abilities. For this programme children must be able to swim 25 metres and be in good physical health.
Answer: PS80.
Solution: If Mr. Brown and his two sons (ages 12 and 14) go to learn windsurfing, how much will they pay?