35 inland letters cost ₹ 87.50. How many such letters can we buy for ₹ 315?

Answer

To solve the problem step by step, we will follow the method outlined in the video transcript.

### Step 1: Understand the given information
We know that:
- The cost of 35 inland letters is ₹87.50.

### Step 2: Find the cost of one letter
To find the cost of one letter, we divide the total cost by the number of letters.

\[ \text{Cost of one letter} = \frac{87.50}{35} \]

### Step 3: Calculate the cost of one letter
Now, we perform the division:

\[ \text{Cost of one letter} = \frac{87.50}{35} = 2.50 \]

### Step 4: Find how many letters can be bought for ₹315
Now that we know the cost of one letter, we can find out how many letters can be bought with ₹315 by dividing ₹315 by the cost of one letter.

\[ \text{Number of letters} = \frac{315}{2.50} \]

### Step 5: Calculate the number of letters
Now, we perform the division:

\[ \text{Number of letters} = \frac{315}{2.50} = 126 \]

### Conclusion
Thus, for ₹315, we can buy **126 inland letters**.

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