Shalu cycles to her school at an average speed of 12 km/hr. It takes her 20 minutes to reach the school. If she wants to reach her school in 15 minutes, what should be her average speed?

Explanation

To solve the problem step by step, we will first determine the distance Shalu cycles to her school and then calculate the speed she needs to reach in 15 minutes.

### Step 1: Calculate the distance to the school
Shalu cycles at an average speed of 12 km/hr for 20 minutes.

To find the distance, we can use the formula:
\[
\text{Distance} = \text{Speed} \times \text{Time}
...