Anu went to buy some notebooks for her classmates that costs ₹ 120 each. Bookseller offers her a discount such that after buying 15 notebooks, she has to pay the price of 12 notebooks and 3 are given at the cost of ₹ 60 each. Find the percentage of discount offered.15%1212%1212%10%6%
Question
Anu went to buy some notebooks for her classmates that costs ₹ 120 each. Bookseller offers her a discount such that after buying 15 notebooks, she has to pay the price of 12 notebooks and 3 are given at the cost of ₹ 60 each. Find the percentage of discount offered.15%1212%1212%10%6%
Solution
The problem is asking for the percentage of discount offered to Anu when she bought notebooks. Here's how you can solve it:
Step 1: Calculate the original cost of 15 notebooks without any discount. The cost of one notebook is ₹120. So, the cost of 15 notebooks would be 15 * ₹120 = ₹1800.
Step 2: Calculate the cost of 15 notebooks with the discount. According to the discount, she has to pay the price of 12 notebooks and 3 are given at the cost of ₹60 each. So, the cost of 12 notebooks would be 12 * ₹120 = ₹1440. And the cost of 3 discounted notebooks would be 3 * ₹60 = ₹180. Therefore, the total cost with the discount would be ₹1440 + ₹180 = ₹1620.
Step 3: Calculate the amount of discount. The amount of discount would be the original cost minus the discounted cost. So, the discount would be ₹1800 - ₹1620 = ₹180.
Step 4: Calculate the percentage of the discount. The percentage of the discount would be (Discount / Original cost) * 100. So, the percentage of the discount would be (₹180 / ₹1800) * 100 = 10%.
So, the bookseller offered a 10% discount to Anu.
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