Question

At present a mother is 3 times older than her son.after 5 years the sum of their ages will be 70 years. The age of the mother after 10 years will be.

Answer 1

Answer:

Step-by-step explanation

Mothers age x

Sons age y

X=3y 1

X+5+y+5=70

X+y=60 2

Put 1 in 2

3y+y=60

Y=15

X =3×15

45

After 10 yrs

45+10

55

Answer 2

Answer:

let son's age =x

mother's age =3x

after 5 years son's age =x+5

after 5 years mother's age =3x+5

according to question

x+5+3x+5=70years

=>4x+10=70 years

=>4x=60 years

=>x=15 years

son's age =x=15 years

mother's age =3x=3×15=45 years

the age of mother after 10 years

=45+10=55 years

I hope it will help you mate.

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