SOLUTION: 10 years ago, mike was four times as old as Liza. Now he is only twice as old as Liza. How old are they now?

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Question 1143174: 10 years ago, mike was four times as old as Liza. Now he is only twice as old as Liza. How old are they now?
Answer by math_helper(2461) About Me  (Show Source):
You can put this solution on YOUR website!


M = Mike's age

L = Liza's age



The description gives two equations in two unknowns:

M = 2L           (1)

M-10 = 4(L-10)   (2)





Solve these to get L=15, M=30