Question

Present age of vani is four times the present age of her sister mala.after 10 years,twice vani's age will be four times mala's age.find their present ages

Answer 1

Answer:

vani's age= 20   mala's age= 5

Step-by-step explanation:

let mala's  age be x

so vani's age will be 4x

after 10 years

2[4x+10]=4[x+10]

8x+20=4x+40

8x-4x=40-20

4x=20

x=5

Answer 2

let vani present age is x years then his sisters mala age be x/4.

a.t.q.

2(x+10)=4(x/4+10)

2x+20=x+40

x=20

hence, vanis present age is 20 years and malas present age is 5 years.