A person buys 3 items of Rs.1500 each and 2 items of Rs. 1800 each from a shopping mall. On the total bill a discount of 10% is given. What is the average cost of the items?
1458
To find the average cost of the items after applying a discount, let's break down the problem step by step.
- First, calculate the total cost before discount.
- The cost of 3 items, each priced at Rs. 1500, is: \(3 \times 1500 = 4500\) Rs.
- The cost of 2 items, each priced at Rs. 1800, is: \(2 \times 1800 = 3600\) Rs.
- Therefore, the total cost before discount is: \(4500 + 3600 = 8100\) Rs.
- Next, calculate the discount amount.
- A 10% discount on the total cost of Rs. 8100 is: \(\frac{10}{100} \times 8100 = 810\) Rs.
- Calculate the total cost after applying the discount.
- The total cost after applying a 10% discount is: \(8100 - 810 = 7290\) Rs.
- The number of items purchased is \(3 + 2 = 5\) items.
- Finally, calculate the average cost per item after the discount.
- The average cost per item is: \(\frac{7290}{5} = 1458\) Rs.
Therefore, the correct answer is 1458 Rs.
This process shows how to correctly account for discounts and calculate average pricing, important concepts in Quantitative Aptitude.
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