Problem Solving (PS) | Re: If 3

3<x<6<y<10
x can be 3.00000000.... and above but not 3

y can be max. 9.999999..... and below 10 .

So, y-x can't be 10-3 = 7

It can attain max value of 6, for e.q if x= 3.000001, y = 9.000001 , x-y = 6

Answer D

---