Question

QLO
The difference between the ages of two cousins be 10years
15years is years if the elder is twice as old the younger one
Find their present age.​

Answer 1

Age difference between two cousins is 10 years.

Elder one is twice older than younger one, 15 years ago.

Let the age of the younger cousin = y

The age of the elder cousin = y + 1

15 years ago,

The age of younger cousin = y - 15

The age of elder cousin = y + 10 - 15 = y - 5

$y$- $5$= $2$($y$- $15$)

$y$- $5$= $2y$- $30$

$2y$- $y$= $30$- $5$

$y$= $25$

Age of younger cousin = $25$

Age of elder cousin = $y$+$10$=$35$