Stamp Collecting

Last week, Tom and Sophie bought some stamps and they spent exactly £10. Can you work out how many stamps they bought?
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Problem



Last week, Tom and Sophie bought some stamps for their collections.

Each stamp Tom bought cost him £1.10, whilst Sophie paid 70p for each of her stamps.

Between them they spent exactly £10.

How many stamps did they buy in total?

If you liked this problem, here is an NRICH task which challenges you to use similar mathematical ideas.