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 input: 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 output: 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.
Q: Article: Leeds Castle is in Kent, England. 5 miles (8 km) southeast of Maidstone. It is built on islands in a lake formed by the River Len to the cast of the village of Leeds. It has been open to the public since 1976. Opening time: April to September. 10:00--18:00 October to March: 10:00~17:00 Tickets:Tickets are valid for one year from date of purchase giving free repeat visits to the Castle, grounds and attractions. Excludes special ticketed events and Christmas Day. Adult tickets: PS24 single Child tickets: PS16 single (4~15 years old) Kid ticket: free (under 4) Transportation: Coach or express: National Express from London to Leeds Castle directly Train: Any train from southern cities to Bearsted. transfer by Spot Travel to Leeds Castle. 15 minutes' ride, goes by each hour. The Upstairs Tour: Thursday 21st April, 11:30am See the State bedrooms, not normally on show to the public. Hear about the guests of the roaring 1920s. see the bedroom where Edward and Simpson stayed and where Pavarotti was accommodated during his visit. Price: PS5 per person. A valid entrance ticket is required per person Embroidery Taster Workshop: Sunday 5th June, 10:30am Learn the basics with expert supervision from members of the Embroiderers Association and sew your own small piece of embroidery to lake home and frame to turn into a cushion or handmade greeting card. Price: PS20 per person. A valid entrance ticket is required per person. Includes refreshments and all materials.
Answer: PS40.
A:
How much should an adult with a child pay to enter Leeds Castle?