Roliver is three times as old as Cerise. Three years ago, the sum of their ages was sixty-six. Find their present age?
2 Answers
Cerise is currently 18 and Roliver is 54.
Explanation:
Let Cerise's current age be
If Roliver is currently three times her age, his current age is thus
So 3 years ago, Cerise must have been
Since we know that the sum of their ages 3 years ago was 66, we can form an equation:
Hence, Cerise's age is
Cerise's current age is 12
Roliver's current age is 36
Explanation:
Let Roliver's current age be
Let Cerise's current age be
Breaking the question down into its component parts
Roliver is
tree timeas as old as Cerise
Three years ago
The sum of their ages was
sixty six
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Consider
Add 3 to both sides
Consider
Add 6 to both sides
Using
Divide both sides by 6
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Substitute for
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