Question: Xavier is twice as old as Yasmin is. Xavier will 30 years old in six years. What is the total of their ages now?
Answer: Step-by-step reasoning process: If in six years Xavier will be 30 years old, he is 30 - 6 = 24 years old now. If Xavier is twice as old as Yasmin, Yasmin is 24 / 2 = 12 years old. The total of their ages now is 12 + 24 = 36 years.
So the answer is 36.

Question: At Rainbow Preschool, there are 80 students. 25% of them are half-day students and get picked up at noon, while the rest are full-day students. How many are full-day students?
Answer: Step-by-step reasoning process: Number of half day preschoolers is 80 x 25% = 20 students. Number of full day preschoolers is 80 - 20 = 60 students.
So the answer is 60.

Question: Every day, Billie bakes 3 pumpkin pies for 11 days and puts them in the refrigerator. It takes 2 cans of whipped cream to cover 1 pie. If Tiffany comes over and eats 4 pies, how many cans of whipped cream does Billie need to buy to cover the remaining pies?
Answer: Step-by-step reasoning process: In total Billie bakes 3 x 11 = 33 pies. After Tiffany eats the pies, this many pies are in the refrigerator: 33 - 4 = 29 pies. She needs to buy this many cans of whipped cream 29 x 2 = 58 cans.
So the answer is 58.

Question: James is trying to avoid eating too much sodium. He's making a recipe that calls for 2 teaspoons of salt and 8 oz of parmesan cheese. Salt has 50 mg of sodium per teaspoon and parmesan has 25 mg of sodium per oz. If he can't reduce the salt, how many fewer ounces of parmesan cheese does he need to use to reduce the total amount of sodium by 1/3rd?
Answer:
Step-by-step reasoning process: First find how much sodium the parmesan has in total by multiply the amount of sodium per ounce by the number of oz: 25 mg / oz * 8 oz = 200 mg. Then use the same process to find how much sodium is in the salt: 50 mg / tsp * 2 tsp = 100 mg. Then find the total sodium in the recipe by adding the sodium from the cheese and the salt: 100 mg + 200 mg = 300 mg. Then multiply the total amount of sodium by 1 / 3 to find how much less sodium James wants: 300 mg * 1 / 3 = 100 mg. Then divide this amount by the amount of sodium per ounce of cheese to find how many fewer ounces of cheese he needs: 100 mg / 25 mg / oz = 4 oz.
So the answer is 4.