Word problems: money and time

1. A book costs £4.75. How much do 6 books cost? 2. A train leaves at 09:47 and arrives at 11:15. How long is the journey? 3. Sam has £20. He spends 3/8 of it. How much is left? 4. Pens cost 35p each or 4 for £1.20. How much is saved buying 8 pens in packs of 4? 5. A film starts at 18:40 and lasts 1 h 55 min. When does it end?