A mobile plancosts Rs. 32 for 6 minutes . What ist he approximate cost, in rupees, for 4 minutes ?

Options

A. `21.30`
B. `21.40`
C. `21.20`
D. `21.50`

Answer

To find the approximate cost for 4 minutes of a mobile plan that costs Rs. 32 for 6 minutes, we can follow these steps:

### Step 1: Calculate the cost per minute
First, we need to find out how much it costs for 1 minute. We do this by dividing the total cost by the number of minutes.

\[ \text{Cost per minute} = \frac{\text{Total cost}}{\text{Number of minutes}} = \frac{32}{6} \]

### Step 2: Perform the division
Now, we perform the division to find the cost per minute.

\[ \text{Cost per minute} = \frac{32}{6} \approx 5.33 \]

### Step 3: Calculate the cost for 4 minutes
Next, we multiply the cost per minute by the number of minutes we want to find the cost for, which is 4 minutes.

\[ \text{Cost for 4 minutes} = \text{Cost per minute} \times 4 = 5.33 \times 4 \]

### Step 4: Perform the multiplication
Now, we perform the multiplication to find the total cost for 4 minutes.

\[ \text{Cost for 4 minutes} = 5.33 \times 4 \approx 21.32 \]

### Step 5: Round to the nearest approximation
Since the question asks for the approximate cost, we can round 21.32 to the nearest value, which is 21.30.

### Final Answer
Thus, the approximate cost for 4 minutes is Rs. 21.30.

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