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Fifty Coins

Age 11 to 14 Short Challenge Level:

Cheryl finds a bag containing 50 coins.

The value of the coins is £1.81.

If the bag only contains two-pence and five-pence coins, how many more five-pence coins are there than two-pence coins?


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


This problem is taken from the UKMT Mathematical Challenges.
You can find more short problems, arranged by curriculum topic, in our short problems collection.