SOLUTION: Sandy is twice as old as candy and dandy is nine years older than candy.
Three years ago, sandy was nine less than three times candy's age. How old is dandy's 3 years ago?
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Three years ago, sandy was nine less than three times candy's age. How old is dandy's 3 years ago?
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Question 1162813: Sandy is twice as old as candy and dandy is nine years older than candy.
Three years ago, sandy was nine less than three times candy's age. How old is dandy's 3 years ago? Answer by ikleyn(52793) (Show Source):
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Sandy is twice as old as Candy, and Dandy is nine years older than Candy.
Three years ago, Sandy was nine less than three times Candy's age. How old was Dandy 3 years ago?
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Let x be the Candy's age.
Then the Sandy's age is 2x years.
Three years ago
Sandy was 2x-3 years old, and
Candy was (x-3) years old.
The condition says that
2x-3 = 3(x-3) - 9 ("Three years ago, sandy was nine less than three times candy's age")
Simplify and solve
2x - 3 = 3x - 18
18 - 3 = 3x - 2x
x = 15.
Thus the Candy's age is 15 years now.
Dandy is nine years older than Candy, so Dandy is 15+9 = 24 years old now.
3 years ago, Dandy was 24-3 = 21 years old. ANSWER
