Correct Answer - Option 2 : 7

The product of three integers X, Y and Z is 192.

X.Y.Z = 192

Z is equal to 4.

⇒ X.Y.(4) = 192 ⇒ **X.Y = 48**

Possibilities are: (1,48), (2,24), (3,16), (4,12), (6,8)

P is equal to the average of X and Y.

P = (X + Y)/2

P_{min} = (X + Y)_{min}/2 = (6 + 8)/2 = 7