Q: Anna puts three slices of ham in each sandwich. If she has 31 slices of ham, how many more slices of ham does she need to make 50 ham sandwiches?
A: Anna needs 3 x 50 = 150 slices of ham to make 50 sandwiches. Anna needs 150 - 31 = 119 more slices of ham. The answer is 119.
Question: The total number of whales in the sea this year is double what it was last year. If the World Animals Organization predicts that there will be 800 more whales in the sea next year, and the number of whales in the sea last year was 4000, calculate the total number of whales in the sea next year if the predictions are accurate.
Answer: If there were 4000 whales in the sea three years ago, and their number doubled this year, then there are 2 * 4000 = 8000 whales in the sea this year. If the predictions come true, there will be 8000 + 800 = 8800 whales in the water next year. The answer is 8800.
[Question]There were 80 cars in a parking lot. At lunchtime, 13 cars left the parking lot but 5 more cars went in than left. How many cars are in the parking lot now?
[Answer]There are 80 - 13 = 67 cars in the parking lot after 13 went out. 13 + 5 = 18 cars went in the parking lot at lunchtime. So, there are 67 + 18 = 85 cars in the parking lot now. The answer is 85.
Q: Jean is trying to motivate herself to write her final paper. She eats one donut per 2 pages that she writes. If she writes 12 pages and each donut has 150 calories, how many calories does she eat?
A: First find the total number of donuts Jean eats: 12 pages / 2 pages / donut = 6 donuts. Then multiply that number by the number of calories per donut to find the total number of calories she eats: 6 donuts * 150 calories / donut = 900 calories. The answer is 900.
Question: Levi has 5 lemons. Jayden has 6 more lemons than Levi. Jayden has one-third as many lemons as Eli has while Eli has one-half as many lemons as Ian has. How many lemons do they have in all?
Answer: Jayden has 5 + 6 = 11 lemons. Eli has 11 x 3 = 33 lemons. Ian has 33 x 2 = 66 lemons. Thus, the 4 of them have a total of 5 + 11 + 33 + 66 = 115 lemons. The answer is 115.
Q: Louie obtained 80% on a math quiz. He had 5 mistakes. How many items were there on the math quiz?
A:
Louie got 100% - 80% = 20% of the total items incorrect, which is equal to 5 items. So 1% is equal to 5 / 20 = 1 / 4 of an item. Hence, the total number of items, represented by 100%, on the math quiz was 1 / 4 of an item x 100 = 25. The answer is 25.