Quick slove

To find the profit, we need to calculate the cost price first.

Step 1: Let’s assume the cost price is x.

We know that the shopkeeper expects a gain of 22.5% on his cost price.

Step 2: Calculate the selling price.

Selling Price = Cost Price + Profit
Since the profit is 22.5% of the cost price, we can write:
Selling Price = x + 0.225x
= 1.225x

Step 3: Given that the sale was of Rs. 392, we can set up the equation:

1.225x = 392

Step 4: Solve for x.

x = 392 / 1.225
x = 320

Step 5: Calculate the profit.

Profit = Selling Price – Cost Price
= 392 – 320
= 72