Instruction:
What is the largest amount of money in coins without being able to make change for a dollar?

Response:
To make change for a dollar, you would need 4 quarters or 10 dimes or 20 nickels or 100 pennies or a combination of those that add up to a dollar.  The largest amount of money in coins without being able to make change for a dollar would be $1.19.  If you have 3 quarters, 4 dimes, and 4 pennies, you would have $1.19, but you wouldn't be able to combine those to an even one dollar.