Question

tias age is d years while dias age is (d-6) . in ten years dias age will be two-thirds tias age.find dias present age?

Answer 1

6 years old

Explanation:

Answer 2

Dia's age is 6.

Explanation:

Tia's age= d

Dia's age= d-6

Therefore, after 10 years,

Dia's age= 2/3 Tia's age

Hence,

d-6+10=2/3(d+10)

d+4=2/3(d+10)

3/2(d)+4=d+10

3/2(d)-d=10-4

3d/2-2d/2=6

d/2=6

1/2(d)=6

d=6×2

d=12

Therefore,

Dia's age=d-6

=12-6

=6 yrs old