SOLUTION: Mark and Kelly have the same birthday. Mark is twice as old as Kelly was when Mark was as old as Kelly is now. If Mark is 24 years old now, how old is Kelly?
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-> SOLUTION: Mark and Kelly have the same birthday. Mark is twice as old as Kelly was when Mark was as old as Kelly is now. If Mark is 24 years old now, how old is Kelly?
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Question 911641: Mark and Kelly have the same birthday. Mark is twice as old as Kelly was when Mark was as old as Kelly is now. If Mark is 24 years old now, how old is Kelly?
How do I solve this question? I know the answer is 18, but what is the formula to get that number? Answer by richwmiller(17219) (Show Source):
You can put this solution on YOUR website! http://www.algebra.com/algebra/homework/word/age/Age_Word_Problems.faq.question.172442.html
also
http://www.algebra.com/algebra/homework/word/age/Age_Word_Problems.faq.question.867421.html
