6. Billi is twice as old as his son. In 10 years, the ratio of their ages will be 3:5 find their present ages.

by nanidomingo

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6. Billi is twice as old as his son. In 10 years, the ratio of their ages will be 3:5 find their present ages.

by nanidomingo

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checking:

2(20)=40

20+10=30

40+10=50

30:50=3:5