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Kate's Date

Weekly Problem 31 - 2012
When Kate ate a giant date, the average weight of the dates decreased. What was the weight of the date that Kate ate?

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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?

Top Coach

Stage: 3 Challenge Level: Challenge Level:2 Challenge Level:2

Keep a record of your results.

Carry out several time trials for each training regime - the performance of the crew is likely to vary.

Consider changing just one element of the training regime at a time, and note its effect.

Even when you have identified the optimum training regime, you cannot guarantee to win every race!