Question

Plz solve the 6th question .

Answer 1

lets consider sons age is X and fathers age is Y

first condition

2X+Y=70. (1)

second condition

X+2Y=95. (2)

now let's add

2X+Y=70

+ X+2Y=95

3X+3Y=165

X+Y= 55. (3) dividong the equation by 3

substuting Y=70-2X from equation 1

X+70-2X=55

-X= 55-70

X = 15

substuting X=15in equation (1)

2X+y=70

2(15)+Y=70

30+Y=70

Y=70-30

therfore Y=40

therfore sons age is 15 and fathers age is 40