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What is the total price paid by an agency for 100 printers, knowing every 20th printer costs 40% less?

  1. 22000

  2. 20800

  3. 22000 - 880

  4. 21000

The correct answer is: 20800

To determine the total price paid by the agency for 100 printers, it's important to first calculate the cost of the regular printers and then account for the discounted printers. If we assume that the regular price of each printer is a certain amount (let's call it P), then for 100 printers, the cost would originally be 100P. However, every 20th printer is sold at a 40% discount. This means for every batch of 20 printers, one printer will cost 60% of the original price (since 100% - 40% = 60%). Thus, the cost for each of these 20-printer groups is: - 19 printers at full price: 19P - 1 printer at a discounted price: 0.6P The total for one group of 20 printers becomes: 19P + 0.6P = 19.6P. Since there are 100 printers, this means there are 5 groups of 20 printers. Therefore, the total cost for all 100 printers is: 5 * 19.6P = 98P. If we assume a base price for P, the total can be computed. If the