How many different sums of money exist if we can choose 4 coins from any number pennies, nickels, dimes, and quarters?
I'm sorry, but that was a badly phrased question.
Having mild Dyslexia, it almost tricked me.
At first glance...
The only way to solve that, as is, would be in reverse.
But at second glance the answer is fairly obvious.
Especially when one takes the answer alternatives into
How many types of coins are there?
I hope that helped...