SOLUTION: Amy is 7years older than her younger sister who is 3/4 age of her 12year old brother. How old is Amy ?

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Question 1101541: Amy is 7years older than her younger sister who is 3/4 age of her 12year old brother. How old is Amy ?
Answer by josgarithmetic(39618) About Me  (Show Source):
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Sibling                Age               Computed Age
___________________________________________________________
AMY                  +7%2B%283%2F4%29%2A12         16
SISTER                 %283%2F4%29%2A12           9
Younger BROTHER         12                12

Amy is 16.