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Weekly Problem 34 - 2012

Stage: 2 and 3 Challenge Level: Challenge Level:2 Challenge Level:2
The cake weighed 5 130g.

The range of the guesses (5 040g, 5 060g, 5 110g, 5 120g and 5 150g) is just 100 so the two 'wild' estimates must both be low or both high.

Since the difference between 5 040 and 5 060 is 20, 5 040 is 90 out and 5 060 is 70 out.

This problem is taken from the UKMT Mathematical Challenges.

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