the ratio of the ages of A and B is 9:4.3 years ago the ratio of their age was 3:1.find their present ages
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Let the ages A & B be 9x:4x
4 years ago the ages are 9x-3:4x-3=3:1
9x-3=12x-9
3x=6 then x=2
Present ages A, B are 18,8
4 years ago the ages are 9x-3:4x-3=3:1
9x-3=12x-9
3x=6 then x=2
Present ages A, B are 18,8
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