SOLUTION: Three years ago, Mary was seven times as old as her sister Jane was. Two years ago, Mary was four times as old as Jane was, and one year ago she was three times as old as Jane was
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Question 95153: Three years ago, Mary was seven times as old as her sister Jane was. Two years ago, Mary was four times as old as Jane was, and one year ago she was three times as old as Jane was. How old are Mary and Jane now?
Answer by scott8148(6628) (Show Source): You can put this solution on YOUR website!
m-3=7(j-3) ... m=7j-18
m-1=3(j-1) ... (7j-18)-1=3j-3 ... 4j=16 ... j=4
m=7(4)-18 ... m=10
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