Six letters, M, E, K, T, X  and B are written on different faces of a dice. Three positions of this dice are shown here. Find the letter on the face opposite E.

Logic: In these types of dice problems, we should write all three numbers in clockwise or anticlockwise from a fix common number.

M is common in both the positions.

From both the positions,

So, T is on opposite face of E.

Thus, correct option is (b).