21
Q:
A) 9 | B) 6 |
C) 5 | D) 4 |
Answer: D) 4
Explanation:
Explanation:
Let the value to be find be 'x'.
Sum of individual column value = 14
C1 = 7 + 2 + 1 + 4 = 14
C2 = 3 + 8 + 1 + 2 = 14
C3 = 6 + 5 + 2 + 1 = 14
C4 = 2 + 4 + 4 + x = 14
x = 14 - 10
x = 4
Hence, the missing number is '4'.