IMC 2018 Q3
3. In September 2016 a polymer £5 note was introduced. The Bank of England issued 440 million of them.
What is the total face value of all these notes?
- A £220 000 000
- B £440 000 000
- C £2 200 000 000
- D £4 400 000 000
- E £22 000 000 000
Intermediate Mathematical Challenge 2018, Question 3. © UK Mathematics Trust. Original paper on ukmt.org.uk
Answer: C £2 200 000 000
The total face value of the £5 notes is £5 × 440 million = £2200 million = £2 200 000 000.
Solution © UK Mathematics Trust, from the IMC 2018 solutions. Longer versions with investigations: Solutions and investigations (PDF).