Banknotes count

Mr. Novák has 20 banknotes in his wallet and 6100 crowns. Some banknotes have a value of CZK 200. Some have a value of CZK 500. How many two-hundred-crown bills does Mr. Novák have in his wallet?

Final Answer:

n =  13

Step-by-step explanation:

6100 = 200 n + 500 p n+p=20  6100=200 n+500(20n)  6100=200 n+500 (20n)  300n=3900  n=3003900=13  n=13  p=20n=2013=7



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