Question

Ek Pita Apne Putra se duguna hai 10 varsh pahle vah Apne Putra se 3 Guna Bada tha Pita ki vartman aayu gyat Karen
a-36 varsh
b-8 varsh
c-40 varsh
d-10 varsh​

Answer 1

Answer:

answer will be

d)10

Step-by-step explanation:

let,

When the son is twice as old as his father

x=2y

x-y=0…eq(1)

10 years ago father was 3 times older than his son

3(x-10)=2y-10

3x-30=2y-10

3x-2y-20=0…(2)

according eq(1) and eq(2)

3X-2y-20-x+2y=0

2X-20=0

x=10