Question

2 years ago Jones for age 2 times after 1 his age will be three time that of his son what is the different between present age​

Answer 1

Answer:

2 years ago Jones ages 2.

after 1 year his age 1. ana now this year his age 1.

solution:.

2+1+1=4

now Jones present age is 4.

Answer 2

Answer:

let,

Jones age=x

son age=y

x=2y-2

x-2y= -2.______(1)

x=3y+1

x-3y=1_______(2)

elimination method:

x-2y= -2

(-)+x-(+)3y=+(-)1

____________

1y= -3

y=-3/1

y= -3

substitute the (y) value in second equation

x-3y=1

x-3×-3=1

x+9=1

x=1-9

x= -8

checking:

x-2y= -2

-8-2×-3

-8+6

= -2

explanation:

present age of Jones=x= -8

present age of.son=y= -3

difference= -8-3= -11