Question

In the following question, a matrix of certain characters is given. These characters follow a certain trend, row-wise or column-wise. Find out this trend and choose the missing character accordingly.

6	9	15
8	12	20
4	6	?

• A. 5
• B. 10
• C. 15
• D. 21

Answer 1

Answer: (B)

10

In the first row, $6\times 3/2=9,6\times 5/2=15$.

In the second row, $8\times 3/2=9,8\times 5/2=20$.

$\therefore$ In the third row, missing number $4\times 5/2=10$.