By selling a bucket for Rs 67.50, a shopkeeper loses 10%. How much per cent would he gain or loss by selling it for Rs 82.50?

Explanation

To solve the problem step by step, we need to find the cost price (CP) of the bucket first and then determine the gain or loss percentage when it is sold for Rs 82.50.

### Step 1: Determine the Cost Price (CP)

Given that the selling price (SP) is Rs 67.50 and there is a loss of 10%, we can use the formula for loss:

\[
\text{Loss} = \frac{\text{CP} - \text{SP}}{\text{CP}} \times 100
...