The solution of equations x-y=2 and x+y=4 is :

A 3 and 1

B 4 and 3

C 5 and 1

D -1 and -3

Correct Answer: Option A

দেওয়া আছে,
x-y=2.............(i)
x+y=4..........(ii)
.(i)+(ii)
2x=6
বা,x=3

আবার, (ii)
3+y=4
বা,y=4-3
বা,y=1
অতএব,(x,y)=(3,1)