Find the missing term in diagram shown below? 3C 2B 4A 27A ? 64B 9C 4A 16B

In each row, out of the letters A, B and C, each of these must appear once. Also, in each column, the product of first and third numbers is equal to the second numbers.

So, the missing number will be 4 × 2 = 8 and the missing letter will be C.

Thus, the answer is 8 C.