Question

$\begin{array}{cccccc}188& 186& P& 174& 158& 126\end{array}$

In each of the following questions a number series is given. A number in the series is suppressed by 'P' mark. First find out the number in the place of P' mark and use this number to find out the answer of the question following the series.

Find $\sqrt{P-13}$

• A. $14.30$
• B. $14.10$
• C. $13.00$
• D. $13.67$

Answer 1

The correct option is C $13.00$

First, let's find the difference between the numbers.

$188$ $186$ $P$ $174$ $158$ $126$

$2$ $x$ $y$ $16$ $32$

The series comes out to be a G.P.

$2$ $4$ $8$ $16$ $32$

$\therefore x=186-P=4$ $\Rightarrow P=182$

$\therefore y=P-174=8$ $\Rightarrow P=182$

$\therefore P=182$

$\therefore \sqrt{182-13}=\sqrt{169}=13.00$

Hence, the answer is $13.00$.