Question

Riya's mother is thrice as old as Riya. After 12 years, she will
be just twice her daughter. Find their present ages.​

Answer 1

Answer:

age of her mother is 60 years while riyas age is 30 years

Step-by-step explanation:

let riya age be x

and riya mother is thrice y = 3x

ATQ

after 12 years she will be just twice her daughter

=>y+12=2(x+12)

putting the value of y

=>3x+12=2(x+12)

=>3x+12=2x+42

=>3x-2x=42-12

=>x=30

putting the value of x

=>3x=3*30

=>60 years

Answer 2

● Let Riya's present age be x.

● Riya's mothers age will be 3x.

● Riya's age after 12 years = x + 12.

● Riya's mothers age after 12 years = 3x + 12.

Therefore :-

3x + 12 = 2(x + 12)

3x + 12 = 2x + 24

3x - 2x = 24 - 12

x = 12

Hence, Riya's present age is 12 years. Riya's mothers present age is 36 years.

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