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Balancing the Books

Weekly Problem 32 - 2012
How many visitors does a tourist attraction need next week in order to break even?

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Grandpa's Rock Cakes

Weekly Problem 34 - 2012
Grandpa made a super-heavy rock cake. Five people have guessed the weight of the cake. Can you work out the weight of his cake?

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Marathon Mission

Weekly Problem 33 - 2012
Minnie trained more for the London Marathon this year, so her speed increased. By what percentage did her time decrease?

Kate's Date

Stage: 3 Short Challenge Level: Challenge Level:1
The total weight of the original five dates was 5 x 50g = 250g.

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

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

This problem is taken from the UKMT Mathematical Challenges.

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