You can’t possibly have a quarter, nor more than one dime. You also can’t have more than 5 pennies, because the number of pennies must be divisible by 5 and if you have more than 5 pennies, you have at least 10 pennies — more than 7 coins. So, you figure it out from here. 10+5+5=20 cents!!!!!!!!!!!!!
How many ways can you make 25 cents with coins?
13 different ways
Note: There are 13 different ways to make 25 cents with quarters, dimes, nickels, and pennies.
How do you make 100 cents?
Each dime is worth 10 cents so ten dimes make one dollar because 10 x 10 = 100 cents. Each nickel is worth 5 cents so twenty nickels make one dollar because 20 x 5 = 100 cents. Each quarter is worth 25 cents. 4 x 25 = 100 cents and so four quarters make one dollar.
How to count possible combinations for coin problem?
Aryabhatta’s answer for counting the number of ways to make change with coins of fixed denominations is very cute but also impractical to implement as described. Rather than use complex numbers, we’ll use modular arithmetic, similar to how the number-theoretic transform replaces a Fourier transform for multiplying integer polynomials.
What are the different combinations of coins to make an amount?
We can add four 5p coins to make 20p. The remaining two 5p coins make 10p. The three 1p coins make 3p but there is no 3p coin. We can add two of the 1p coins to make 2p. Both combinations of coins add to make 33 pence. Use Up/Down Arrow keys to increase or decrease volume.
How many coins are in a set of 4?
Every answer counts the number of ways you can choose 1, 2, 3 or 4 coins from your set of 4 coins correctly, but they all miss one condition in the problem statement that makes it unsolvable due to insufficient information – that the sums of money obtained by adding up the face values of the chosen coins have to be different.
How many different sums can you make with 4 coins?
For each coin, you either pick it, or you do not pick it. That’s 2 things you can do with each coin. You got 4 coins – so, that’s 2 x 2 x 2 x 2 = 16 different sums you can make. Oh, and in one of the combinations, you haven’t picked a single coin – so you discard that one. Finally, you got 15 different sums. What does Google know about me?
