Step-by-step explanation: You still have that amount, you can't combine things that aren't alike. It's like combining forks and spoons. They're totally different things. Therefore, you still have that amount. (but if you just want to add both of hem it's 1,235)
If there are 16 cups in one gallon, each gallon u add 16. If you have 3 gallons you add 16 3 times. So to get your answer you multiply 16 by three which is 48 cups.