Ankita purchased a Maths book for `Rs 93.50` and a Science book for `Rs 38.05` from a bookshop. She gave a five hundred-rupee note to the shopkeeper. What amount did she get back?

Options

A. `Rs 398.45`
B. `Rs 128.45`
C. `Rs 368.45`
D. `Rs 238.45`

Answer

To solve the problem step by step, we will follow these calculations:

### Step 1: Identify the prices of the books
- The price of the Maths book is Rs 93.50.
- The price of the Science book is Rs 38.05.

### Step 2: Calculate the total cost of the books
To find the total cost, we need to add the price of the Maths book and the Science book together.

\[ \text{Total Cost} = \text{Price of Maths book} + \text{Price of Science book} \]
\[ \text{Total Cost} = 93.50 + 38.05 \]

### Step 3: Perform the addition
Align the decimal points and add:

```
93.50
+ 38.05
--------
131.55
```

So, the total cost of the Maths and Science books is Rs 131.55.

### Step 4: Determine the amount given to the shopkeeper
Ankita gave the shopkeeper a Rs 500 note.

### Step 5: Calculate the amount Ankita gets back
To find out how much money Ankita gets back, we subtract the total cost of the books from the amount she gave to the shopkeeper.

\[ \text{Amount Back} = \text{Amount Given} - \text{Total Cost} \]
\[ \text{Amount Back} = 500 - 131.55 \]

### Step 6: Perform the subtraction
Align the decimal points and subtract:

```
500.00
- 131.55
--------
368.45
```

Thus, the amount Ankita gets back is Rs 368.45.

### Final Answer:
Ankita gets back Rs 368.45.

---