Question 451935
n+q+h=10
5n+25q+50h=100
20 nickels=100
4 quarters=100
2 halves = 100
1*50+10*5=100 11 coins
2*25+10*5=100 12 coins
1*50+1*25+5*5=100 7 coins
3*25+5*5=100 8 coins

Can't be done with modern coins.