If 7 pencils cost Rs 35, then the cost of one dozen pencils is

Options

A. Rs 60
B. Rs 70
C. Rs 30
D. Rs 5

Answer

To find the cost of one dozen pencils when 7 pencils cost Rs. 35, we can follow these steps:

### Step 1: Find the cost of one pencil
We know that the cost of 7 pencils is Rs. 35. To find the cost of one pencil, we divide the total cost by the number of pencils.

\[ \text{Cost of one pencil} = \frac{\text{Total cost}}{\text{Number of pencils}} = \frac{35}{7} = 5 \text{ Rs.} \]

### Step 2: Calculate the cost of one dozen pencils
One dozen pencils means 12 pencils. Now that we know the cost of one pencil is Rs. 5, we can find the cost of 12 pencils.

\[ \text{Cost of one dozen pencils} = \text{Cost of one pencil} \times \text{Number of pencils in a dozen} = 5 \times 12 = 60 \text{ Rs.} \]

### Final Answer
The cost of one dozen pencils is Rs. 60.

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