Fill in the blanks.
…………………..INR 50 notes makes 300 rupees.
$
  {\text{a}}{\text{. 3}} \\
  {\text{b}}{\text{. 4}} \\
  {\text{c}}{\text{. 6}} \\
  {\text{d}}{\text{. 8}} \\
$

Hint: - One INR 50 note $ = 50Rs.$

Let number of INR 50 notes be $x$
The amount given is 300 rupees.
Now as we know one INR 50 note$ = 50Rs.$
According to question
$300 = x \times $Amount of one INR 50 note
$
   \Rightarrow 300 = x \times 50 \\
   \Rightarrow x = \dfrac{{300}}{{50}} = 6 \\
$
So, 6 INR 50 notes makes 300 Rupees.
Hence, option (c) is correct.

Note: - In such types of questions always remember that one INR 50 notes is equal to 50 rupees, then let the number of INR 50 notes be $x$then according to the given condition simplify it, then we will get the required number of notes which makes 300 rupees.