Question

The sum of the age of Pashupati and his brother is 15 and the difference between their ages is 3 find their ages​

Answer 1

A + B = 15 .......[|]

A - B = 3 .......[||]

The age of Pashupati is 9 years and had brother is 6 years.

Answer 2

Let age of pashupati be x years

therefore , age of pashupati's brother = (x - 3) yrs

Sum of their ages = 15

=> x + (x - 3) = 15

=> 2x - 3 = 15

=> x = (15 + 3) / 2

=> x = 18 / 2

=> x = 9 years

therefore , pashupati's age = 9 years

and , his brother's age = (9 - 3) = 6 years

Hope it will help you .