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Baby Boom
Age 14 to 16
ShortChallenge Level 
The populations of five cities A, B, C, D, E, in 1998 and 1988, are shown on these scales.
Which of the five cities showed the largest percentage increase in population from 1988 to 1998?
This problem is taken from the UKMT Mathematical Challenges.
You can find more short problems, arranged by curriculum topic, in our short problems collection.
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