Question

Fill in the blank.

$$\begin{array}{ccccc}Price& 100& 75& 50& 25\\ Number& 60& 80& & 240\end{array}$$

• A. 120
• B. 400
• C. 350
• D. 450

Answer 1

The correct option is A

120

According to the given details in the table, we know that it's an inverse proportion.

Let the blank be "y".

The equation formed will be 100 $\times$ 60 = 75 $\times$ 80 = 50 $\times$ y

$\Rightarrow y=120$