Cost reduction

Two MP3 players whose price was equal to initially have been discounted, the first by 20%, the second by 35%. The difference in their prices of 750 CZK was after the price reduction. What was the original price of each of the two players?

Correct answer:

a =  5000 Kc

Step-by-step explanation:

a·(1-20/100)-a·(1-35/100) = 750

15a = 75000

a = 75000/15 = 5000

a = 5000

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