You have 1 dollar in change . You have at least one of each coin less than a
half dollar , but you have no half dollar . What is the smallest number of coins
that you can have
3 quarters, 1 dime, 2 nickels, and 5 pennies. That's 11 coins.
If a fourth of forty is six, what is a third of 20?
Instead of using forty, we increase forty by 20, getting 60.
Instead of taking a fourth, we take a tenth, getting 6.
So,
Instead of using twenty, we increase twenty by 20, getting 40.
Instead of taking a fourth, we take a tenth, getting 4.
That's one way it could be. There are plenty of other ways.
Edwin