Ashraf went to see a movie. He wanted to purchase a movie ticket for Rs. 80. As the ticket for Rs. 80 was not available, he purchased a ticket for Rs. 120 of upper class. How much extra GST did he pay for the ticket ? (GST for a ticket below Rs. 100 is `18%` and GST for a ticket above Rs. 100 is `28%`)

Answer

To find out how much extra GST Ashraf paid for the movie ticket, we will follow these steps:

### Step 1: Calculate the GST on the Rs. 80 ticket
The GST for a ticket priced below Rs. 100 is 18%.

\[ \text{GST on Rs. 80 ticket} = \frac{18}{100} \times 80 \]

Calculating this:

\[ \text{GST on Rs. 80 ticket} = 0.18 \times 80 = 14.40 \]

### Step 2: Calculate the GST on the Rs. 120 ticket
The GST for a ticket priced above Rs. 100 is 28%.

\[ \text{GST on Rs. 120 ticket} = \frac{28}{100} \times 120 \]

Calculating this:

\[ \text{GST on Rs. 120 ticket} = 0.28 \times 120 = 33.60 \]

### Step 3: Calculate the extra GST paid
Now, we will find the difference between the GST paid on the Rs. 120 ticket and the GST that would have been paid on the Rs. 80 ticket.

\[ \text{Extra GST} = \text{GST on Rs. 120 ticket} - \text{GST on Rs. 80 ticket} \]

Substituting the values we calculated:

\[ \text{Extra GST} = 33.60 - 14.40 = 19.20 \]

### Final Answer:
Ashraf paid an extra GST of **Rs. 19.20** for the upper-class ticket.

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