Question 1103456
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There is not enough information.<br>
We know that both Ally and Ken are older than Dan.  (Ally is 8 years older than Dan; Dan is half Ken's age.)
But depending on the exact ages, Ken could be either older of younger than Ally.<br>
Dan 2; Ally 2+8=10; Ken 2*2=4  --> oldest to youngest = Ally, Ken, Dan
Dan 12; Ally = 12+8=20; Ken 12*2=24  -->  oldest to youngest = Ken, Ally, Dan