Question: In a community of 50 families, 15 families own 2 dogs, 20 families own 1 dog, while the remaining families own 2 cats each. How many dogs and cats are there in all?
Answer with step-by-step thinking: The 15 families own 15x2 = 30 dogs. The 20 families own 20x1 = 20 dogs. There are 50 - 15 - 20 = 15 cat owners. The remaining families own 15x2 = 30 cats. There are 30 + 20 + 30 = 80 dogs and cats in the village.
So the answer is 80.


Question: Roman the Tavernmaster has $20 worth of gold coins. He sells 3 gold coins to Dorothy. After she pays him, he has $12. How many gold coins does Roman have left?
Answer with step-by-step thinking: Dorothy paid $12 for 3 gold coins so each gold coin is worth $12 / 3 = $4. The Tavern master originally had $20 worth of gold coins which is $20 / $4 = 5 gold coins. He gave 3 out of 5 gold coins to Dorothy so he now has 5 - 3 = 2 gold coins left.
So the answer is 2.


Question: Tina made a large pan of brownies and cut it into 24 pieces. She had one with lunch and dinner every day for 5 days. Her husband snagged one per day for 5 days to take to work. They shared 4 with dinner guests. How many brownies were left?
Answer with step-by-step thinking:
Tina ate one twice a day for 5 days so 2 * 5 = 10. Her husband at 1 per day for 5 days so 1 * 5 = 5. She made 24, ate 10, her husband ate 5 and the guests ate 4 so 24 - 10 - 5 - 4 = 5 brownies left.
So the answer is 5.