SOLUTION: a movie star unwilling to give his age posed the following riddle
seven years ago i was eleven times as old as my daughter. now i am 4 times as old as she is. how old is the st
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Question 562299: a movie star unwilling to give his age posed the following riddle
seven years ago i was eleven times as old as my daughter. now i am 4 times as old as she is. how old is the star?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = Star's age now
Let = Daughter's age now
= Star's age 7 yrs ago
= Daughter's age 7 yrs ago
--------------------------------
(1)
(2)
-------------
(2)
By substitution:
(1)
(1)
(1)
(1)
(1)
(1)
The star is 40
check:
(2)
(2)
(2)
and
(1)
(1)
(1)
(1)
(1)
(1)
OK
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