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.

$28$	$60$	$48$
$5$	$6$	$7$
$17$	$30$	$7$
$7$	$?$	$16$

Answer 1

The given matrix is

$28$	$60$	$48$
$5$	$6$	$7$
$17$	$30$	$7$
$7$	$?$	$16$

As we can observe in the above matrix, the number in the middle row is three times the difference between the numbers in the third and first columns.

Checking the sequence:

$$\begin{gathered} 3\times (48-28)=3\times 20=60 \\ 3\times \left(7-5\right)=3\times 2=6 \\ 3\times \left(17-7\right)=3\times 10=30 \end{gathered}$$

So, the missing number $=3\times \left(16-7\right)=3\times 9=27$.

Therefore, the complete matrix is :

$28$	$60$	$48$
$5$	$6$	$7$
$17$	$30$	$7$
$7$	$27$	$16$