Question

u will get 21 marks...Plz ans it....

Answer 1

Let the age of the person be a.

Let the age of his two sons be b.

Given that the age of a person is twice the sum of the ages of his two sons.

=> a = 2b  ---- (1)

Given that After 5 years his age was thrice the sum of their ages.

= > a - 5 = 3(b - 5 - 5)

= > a - 5 = 3(b - 10)

= > a - 5 = 3b - 30

= > 2b - 5 = 3b - 30

= > b = 25.


Substitute b = 25 in (1), we get

a = 2(25)

= > a = 50.


Therefore the present age of that person = 50 years.


Hope this helps!