The ratio of Daniels' age to his brother's age is 2:3 If Daniel is 12 years old, how old was his brother 4 years ago?
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Answer:
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Given info : The ratio of Daniel's age to his brother's age is 2 : 3. if the Daniel is 12 years old.
To find : the age of his brother was 4 years ago...
solution : let the proportionality constant is x.
Daniel's age is 2x
and his brother's age is 3x.
a/c to question,
Daniel's age = 12 yrs = 2x
⇒x = 6
now 4 years ago, his brother's age = 3x - 4
= 3 (6) - 4
= 18 - 4
= 14 years
Therefore 4 years ago, his brother was 14 years old.
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