Answer :
50 coin -------------> 10.30$
1coin -------------> x $
x * 50 = 10.30 * 1
x=10.30 / 50
x= 0.206 $
for a one coin jack pay 0.206 $
1coin -------------> x $
x * 50 = 10.30 * 1
x=10.30 / 50
x= 0.206 $
for a one coin jack pay 0.206 $