Question

Find the value $x$ from the given table :
$$\begin{array}{ccccccccc}X& 100& 250& 200& 50& 125& 1000& 4& 40\\ Y& 20& 8& 10& 40& x& 2& 500& 50\end{array}$$

• A. 14
• B. 12
• C. 16
• D. 20

Answer 1

The correct option is C 16

We see that the quantities X and Y are inversely proportional, as the corresponding values of X and Y are such that XY = constant.
Therefore,
100 $\times$ 20 = 125 $\times$ x
$\therefore$ x = 16