Answer:
23 nickels / 31 nickels
Explanation:
there are 12 quarters in $3 - 12 x 2 is 24. the number of nickels is 1 less than twice the number of quarters. therefore there are 23 nickels. however, there are ten nickels in $1 10 x 3 is 30. and looking at $3.18, one more nickel could fit into the 18 cents. so it would be 31 nickels. the question doesn't make sense. maybe its a trick question?