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landeye

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landeye

Number sequence

My 9 year old was asked to predict the next number in a sequence 5, 10, 20, 25, 35, ? I think the answer is 40 becuse there are 2 sequences going on. 5 +15=20, 20 + 15 =35 Meanwhile 40-15 =25 and...
08:41 Thu 26th Oct 20065 answers, last by butterfly2 21:34 Mon 30th Oct 2006

Only 1 question