Question

The ratio of the present ages of a mother and her daughter is 8:3. After 5 years,the ratio of their ages will be 9:4.Find their present ages

Answer 1

Step-by-step explanation:

Let the present age of mother=8x

And the present of daughter =3x

Mother age after 5 years = (8x+5)

Daughter age after 5 years =(3x+5)

(8x +5)/(3x+5) = 9/4

By using cross multiplication

4(8x+5)= 9(3x+5)

32x+20= 27x+45

32x- 27x= 45-20

5x= 25

X= 5

Present age of mother = 8x = 8(5)= 40

Present age of daughter =3x = 3(5) = 15

Hope this helps you

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