A mother is 3 times as old as her son. After 15 years, her age will be twice the age
of her son. Find their present ages.
Answers
Answered by
1
In 15 years, she'll be M+15 and he'll be S+15
M%2B15=2%28S%2B15%29
M%2B15=2S%2B30
M=2S%2B15
Substitute from the first equation.
3S=2S%2B15
highlight%28S=15%29years old
Then from the first equation,
M=3%2815%29
highlight%28M=45%29 years old
Answered by
1
Answer:
Let the son's age now be x years.
Then, Mother's age now =3x years.
After 15 years, son's age =(x+15) years
Mother's age =(3x+15) years
Given, (3x+15)=2(x+15)
⇒3x+15=2x+30
⇒3x−2x=30−15
⇒x=15
∴ Son's age now =15 yrs. and Mother's age now =3×15=45 yrs.
I HOPE IT HELP YOU!
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