SOLUTION: Answer this please. Beth's age is 3 times Sues age. Jill is twice as old as Sue. The sum of their ages is 30. How old is each girl?

Question 984512: Answer this please. Beth's age is 3 times Sues age. Jill is twice as old as Sue. The sum of their ages is 30. How old is each girl?
Answer by vleith(2983) (Show Source): You can put this solution on YOUR website!
Let Sue's age be given by S
Let Beth's age be given by B. You are told
Let Jill's age be given by J. You are told
You are also told the sum of their ages is 30
So
Substituting from the first set of equations, we get

So Sue is 5, Beth is 15 and Jill is 10

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