Question

The present age of shiela and her sister ria are in the ratio is 2:5. 10 years later ,their age will be in the ratio of 4:5 . Find their present age

Answer 1

Answer:

Age of shiela =2yrs

Age of ria =5yrs

Step-by-step explanation:

let the age of shiela be 2x

then age of ria is 5x

ten years later,

shiela =2x+10

ria= 5x+10

But ratio are given So ,

$\frac{2x + 10}{5x + 10} = \frac{4}{5}$

by cross multiplication

$5(2x + 10) = 4(5x + 10)$

=10x+50= 20x+40

=1

So , age of shiela is =2x

=2×1

= 2yrs

Age of ria is =5x

=5×1

=5yrs