Dice - Verbal and Reasoning

Directions to Solve
Six dice with upper faces erased are as shows.The sum of the numbers of dots on the opposite face is 7.
Q1:

If the dice (I), (II) and (III) have even number of dots on their bottom faces, then what would be the total number of dots on their top faces?

A 7

B 11

C 12

D 14

ANS:B - 11

Explanation: No. of dots on the top faces of dice (I), (II) and (III) are 5, 1 and 5 respectively. Required total = 5 + 1 + 5 = 11