1- If 3 twinkies cost $1, how much is it for 15 twinkies?
15 twinkies cost $5.
2- To make lemonade, you need 6 lemons and 6 cups of water. How many lemons do you need if you have 24 cups of water?
I need 18 lemons to make lemonade with 24 cups of water.
Try Solving- Three posters cost $9.60. At this rate, how many posters can you buy for $48.