Question 106660: Ricardo is 4 years less than twice as old as his sister. The sum of their ages is 20. How old is Ricardo?
Thanks Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Ricardo is 4 years less than twice as old as his sister. The sum of their ages is 20. How old is Ricardo?
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NOW DATA:
Let his sister's age be "x"; Ricardo is "2x-4"
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EQUATION:
x + 2x-4 = 20
3x = 24
x = 8 (His sister's age)
2x-4 = 16-4 = 12 (Ricardo's age)
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Cheers,
Stan H.
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