Question

Five years ago Vishwa was thrice as old as Abdul.Ten years later,Vishwa will be twice as old as Abdul.How old are Vishwa and Vishwa?​

Answer 1

Explanation:

Let Vishwa's age be 'x' years

and Abdul's age be 'y' years

x-5= 3(y-5)

x-5=3y-15

x-3y+10=0 -------------equation1

x+10=2(y+10)

x+10=2y+20

x-2y=20-10

x-2y-10 ------------------equation2

Substract equ.1 from equ.2

x-2y-10=0

-

x-3y+10=0

________

= y-20=0

y=20

replace y by 20 in equ.2

x-3y+10=0

=x-3(20)+10=0

=x = 60-10

x=50

Vishwa is 50 years and age of Abdul is 20years.