SOLUTION: Mark's age next year will be three times as old as Kim's age two years ago. If their present ages add to 21, how old is each now?

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 Click here to see ALL problems on Age Word Problems Question 545486: Mark's age next year will be three times as old as Kim's age two years ago. If their present ages add to 21, how old is each now?Answer by oberobic(2304)   (Show Source): You can put this solution on YOUR website!M + K = 21 so M = 21-K . Mark's age next year: M+1 Kim's age 2 years ago: K-2 M+1 = 3*(K-2) . Substitute M = 21-K. . 21-K +1 = 3K -6 28 = 4K K = 7 . M = 21-7 M = 14 . Check. M+1 =15 3(K-2) = 15 Correct. . Answer: Mark is 14, and Kim is 7. . Done.