Question

the age of Renu is 20 years less than her mother after 10 years the age of her mother is twice the age of Renu find the present age of renu​

Answer 1

Answer:

Let, present age of Renu's mother = x yrs.

    Renu's age = (x - 20) yrs.

Accordingly,

    x  + 10 = 2(x - 20)

⇒ x - 2x = -40 - 10

⇒ x = 50

    ∴ Renu's age = (50 - 20) yrs.

                           = 30 yrs.

Answer 2

Answer:

Renu=10 years                      Renu's mother=30 years

Step-by-step explanation:

Let Renu's mother's age=x ; then, Renu's age=(x-20)

After 10 years, their ages are (x+10) and (x-10) rrespectively.

According to question,

(x+10)=(x-10)×2

x+10=2x-20

x=30 years

So, Renu's age=x-20                       Mother's age=30 years

                         =10 years