SOLUTION: Roberts father is 4 times as old as Roberts.After 5 years,father will be three times as old as Roberts.Find their present ages.
Algebra.Com
Question 972490: Roberts father is 4 times as old as Roberts.After 5 years,father will be three times as old as Roberts.Find their present ages.
Answer by amarjeeth123(569) (Show Source): You can put this solution on YOUR website!
Let Roberts age be x.
Then Roberts father's age is 4x.
After 5 years their ages are (x+5) and (4x+5) respectively.
We have (4x+5)=3(x+5)
4x+5=3x+15
x=10.
Roberts is 10 years old and his father is 40 years old.
RELATED QUESTIONS
Steve is three and half times as old as robert. In 8 years, Roberts age will be one half... (answered by josmiceli)
Natalie's father is 4 times as old as Natalie. After 5 years, the father will be three... (answered by Alan3354,ikleyn)
Mrs Roberts is 3 times as old as her son. The sum of their ages is 48 years. How old... (answered by lwsshak3)
Robert’s father is four times as old as Robert. After five years, Robert’s father... (answered by josgarithmetic)
a father is three times as old as his son. after twelve years, his age will be twice as... (answered by stanbon)
a father is 4 times as old as his son he will be 3 times as old as his child in 5 years... (answered by sachi)
a father is 4 times as old as his son. in 5 years he will be 3 times as old as his son.... (answered by TimothyLamb)
Craig is 24 years older than his father. In 10 years Craig's father will be three times... (answered by Alan3354)
a year hence a father will be 5 times as old as hi son.Two years ago,the father was three (answered by rwm)