Question

the present age of pradeepsthe present age of Pradeep father is 3 times that of pradeeps after 5 years sum of their ages will be 70 years write a suitable equation for this data

Answer 1

$present \: age \: of \: pradeep = x \\ present \: age \: of \: father = 3x \\ after \: 5 \: years \\ ( x + 5) + (3x + 5) = 70 \\ 4x + 10 = 70 \\ 4x = 60 \\ x = 15 \\ pradeep \: age \: = 15years \\ fathers \: age \: is = 45years$