SOLUTION: FATHER'S AGE IS THRICE THE AGE OF HIS SON,FATHER'S AGE WAS 42 YRS.WHEN SON WAS BORN ,FIND THE FATHER'S AND SON'S AGE WHEN FATHER'S AGE WILL BE 7 TIMES OF THE SON'S AGE.
Algebra.Com
Question 457255: FATHER'S AGE IS THRICE THE AGE OF HIS SON,FATHER'S AGE WAS 42 YRS.WHEN SON WAS BORN ,FIND THE FATHER'S AND SON'S AGE WHEN FATHER'S AGE WILL BE 7 TIMES OF THE SON'S AGE.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
The key to this is that the difference in their
ages will always be the same
Let = Father's age now
Let = Son's age now
Let = years from now when Father's age
will be 7 times on's age
given:
(1)
(2)
The difference in their ages will still be
when
(3)
----------------------------------
Substitute (1) into (2)
(2) 3s - s = 42 }}}
and
(1)
and
(3)
(3)
(3)
(3)
(3)
and
When the Father was 49 and the Son was 7,
The Father's age was 7 times the Son's age
RELATED QUESTIONS
The father’s age is four times that of his son. Before 8 years, the father’s age was 16... (answered by sachi)
A father is twice as old as his son. He was 6 times his son’s age 20 years ago. What
is... (answered by Cromlix)
A father is twice as old as his son. He was 6 times his son’s age 20 years ago. What is... (answered by Boreal,Alan3354)
If father’s age is 5 times that of son at present, and after 4 yrs sum of father’s age... (answered by CharlesG2)
.A father is twice as old as his son. 20 years ago, the age of the father was 12 times... (answered by josgarithmetic)
The age of Anu’s father is four times his age.If 5 years ago,the fathers age was seven... (answered by josgarithmetic)
If the Fathers age is 5 times his son's age. 4 years back the father was 9 times older... (answered by Theo,ikleyn,kiks)
) A father said to his son, “I was as old as you are at present at time of your birth”.... (answered by mamiya)
The sum of ages of son and father 5 years ago was 46 years. after 8 years the father 's... (answered by josmiceli)
Father’s age is 1 more than five times the son’s age. After 3 years, father’s age will be (answered by ewatrrr)