Alan has seven united state coins. their total value is 61 cents. what coins and how many of each does he have?

I solved this via trial & error, not much to say, other than all other combinations of seven coins did not total to $0.61, so here you go.

1 quarter ($0.25)
2 dimes ($0.20)
3 nickels ($0.15)
1 penny ($0.01)

7 coins ($0.61)

The year before the 10s so it was like when caveman were alive