Two-digit 4883

Dad had 33 bills. One hundred crowns, two hundred and five hundred. A two-digit number gave the number of each species. How many did he have if he had a total of 9100 CZK?

Correct answer:

a =  11
b =  10
c =  12

Step-by-step explanation:

a+b+c=33 a>9; b>0; c>9 100a+200b+500c = 9100 m=100 10+200 10+500 10=8000 d1=9100m=91008000=1100 d2=333 10=3 d2 = 1100= 1 100 + 2 500 a=11
c=12 k1=a+b+c=11+10+12=33 k2=100a+200b+500c=100 11+200 10+500 12=9100

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