You can put this solution on YOUR website! emily is one and a half times older than john. emily is nine how old is john
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1.5 times older = 2.5 times as old
John's age = 9/2.5
= 3.6
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"times older" is not the same as "times as old"
If she's 0.5 times, or 50%, older, is she half his age? If so, she's not older at all.
The 2 terms are not interchangeable, they don't mean the same thing.