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ATQ;
Let the three numbers be x, y, and z.
So, 2x+y+z=190×2=380
x+2y+z=185×2=370
x+y+2z=180×2=360
Thus,4×(x+y+z)=1110
x+y+z=277.5
Now,
x=380−277.5=102.5
y=370−277.5=92.5
z=360−277.5=82.5
Desired difference = 102.5−82.5=20
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