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Kate's Date

Age 11 to 14 Short Challenge Level:


The total mass of the original five dates was 5 x 50g = 250g.

The total mass of the four remaining dates was 4 x 40g = 160g.

Therefore the mass of the date that Kate ate was 250g - 160g = 90g.



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