SOLUTION: I asked my new friend how old is he, he said; "Two years ago I was 15, Next year I'll be eighteen". When is his birthday ?

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Question 1146369: I asked my new friend how old is he, he said; "Two years ago I was 15, Next year I'll be eighteen". When is his birthday ?

Answer by josgarithmetic(39620)   (Show Source): You can put this solution on YOUR website!
17, almost without any arithmetic
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