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John is three quarters the age of his father and the difference in their ages is 15 years

 Mar 4, 2020

Best Answer 

 #1
avatar+25917 
+2

J = 3/4 F

 

F-J = 15          but   J= 3/4F   Put this in for J

F - 3/4F = 15

1/4 F = 15

F = 60   y/o      J= 3/4 F = 3/4 (60) = 45 y/o

 Mar 4, 2020
 #1
avatar+25917 
+2
Best Answer

J = 3/4 F

 

F-J = 15          but   J= 3/4F   Put this in for J

F - 3/4F = 15

1/4 F = 15

F = 60   y/o      J= 3/4 F = 3/4 (60) = 45 y/o

ElectricPavlov Mar 4, 2020

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