Question

Fill in the blank

$\begin{array}{cccc}13& 37& 71& 11\\ 49& 24& 96& 13\\ 52& 43& ....& 14\end{array}$

Answer 1

The fourth number in each row is the square root of the sum of the first three numbers.
$\sqrt{a+b+c}=d$
$13+37+71=121;$ $\sqrt{121}=11$
$49+24+96=169;$ $\sqrt{169}=13$
$52+43+x=95+x;$ $\sqrt{196}=14$
so $95+x=196i.e.x=196-95=101$