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'Weekly Problem 32 - 2007' printed from http://nrich.maths.org/

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One of the following is the largest of nine consecutive positive integers whose sum is a perfect square. Which one is it?

A: 118, B: 128, C: 138, D:148, E:158

 

If you liked this problem, here is an NRICH task which challenges you to use similar mathematical ideas.

 

 

This problem is taken from the UKMT Mathematical Challenges.

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