The mean of two numbers is 20 and their difference is zero then the numbers are
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Let the numbers be x and y
So (x+y)/2=20
X+y= 40
Also x-y= 0
X= y
Which implies x+ x= 40 from equation 1
2x= 40
X= 20 ,y= 20
So (x+y)/2=20
X+y= 40
Also x-y= 0
X= y
Which implies x+ x= 40 from equation 1
2x= 40
X= 20 ,y= 20
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