Final answer:
To calculate the selling price of the set with an 8% gain on the cost price of Rs 21,600, you multiply the cost price by the gain percentage and add it to the cost price. The profit is Rs 1,728, which leads to a selling price of Rs 23,328.
Step-by-step explanation:
To calculate the selling price of the set that was bought for Rs 21,600 with a gain of 8%, you first need to find the amount of profit by multiplying the cost price with the gain percentage. Convert the gain percentage to a decimal by dividing it by 100, which makes 8% equal to 0.08. Multiply the cost price with this decimal to find the profit.
Profit = Cost Price × Gain Percentage
Profit = 21,600 × 0.08
Profit = Rs 1,728
Next, calculate the selling price by adding the profit to the cost price.
Selling Price = Cost Price + Profit
Selling Price = 21,600 + 1,728
Selling Price = Rs 23,328
Therefore, the selling price of the set is Rs 23,328.