Thirty Nine, Seventy Five

Thank you for working out the money in our birthday present pot! We have had lots of suggestions from St Aldhelms School. Can they all be right?

Matthew:

20 * £1.00 = £20.00
20 * 50p = £10.00
44 * 20p = £8.80
3 * 10p = 30p
13 * 5p = 65p
Total   £39.75

Justin:

7 * £1.00 = £7.00
48 * 50p = £24.00
43 * 20p = £8.60
1 * 10p = £0.10
1 * 5p = £0.05
Total   £39.75

Emma:

10 * £1.00 = £10.00
50 * 50p = £25.00
10 * 20p = £2.00
25 * 10p = £2.50
5 * 5p = 25p
Total   £39.75

When you pay for things in shops you can give the money in lots of different ways but in this case you had a set number of coins, 100. are you surprised by the different answers?