Question

Find X and Y ( two positive numbers ) such that, X + Y = 200 and the difference between X and Y is 40 .
1 point
X = 200 , Y = 100
X = 80 , Y = 120
X = 40 , Y = 120
X = 120 , Y = 80​

Answer 1

Answer:

x+y=200 .......1

x-y=40 .......2

adding equation 1 and 2,we get

x+y+x-y=200-40

2x=160

x=80

From equation 1

x+y=200

80+y=200

so,y=120