Respuesta :

Answer: IS A

Step-by-step explanation: Correct option is A)

Let the age of the son be x

∴ The age of his father =5x

Given that

(5x)

2

+(x)

2

=2106

25x

2

+x

2

=2106

x

2

=

26

2106

​

=81

∴x=9

∴ Age of son =9 years

Age of father =5x9=45 years