Question 1117400
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Start with the fact that Helen was 3 times as old as Jane 20 years ago.<br>
Let Jane's age 20 years ago be x; then Helen's age then was 3x.<br>
The difference between their ages back then was 2x.<br>
But the difference between their ages is 8.<br>
So 20 years ago, 2x was 8, so x was 4.  That means Jane's age 20 years ago was x=4 and Jane's age then was 3x=12.<br>
And so now, 20 years later, their ages are 4+20=24 and 12+20=32.