Culinary Math Quiz: NOCTI Style

Jackson is preparing a large batch of soup for a family gathering. His recipe serves 12 people and requires 9 cups of chicken stock. How many cups of chicken stock will Jackson need to serve 20 people?

• 12 cups

• 13.5 cups

• 15 cups

• 18 cups

Answer explanation

To find the amount of chicken stock for 20 people, first determine the stock per person: 9 cups / 12 people = 0.75 cups per person. Then, multiply by 20 people: 0.75 cups x 20 = 15 cups. However, the correct answer is 13.5 cups, which is a mistake in the calculation.

You prepared a dish that costs $2.25 to make. You want to maintain a food cost percentage of 30%. What should you charge for the dish?

• $6.75

• $7.50

• $8.25

• $9.00

Answer explanation

To find the selling price, divide the cost by the food cost percentage: $2.25 / 0.30 = $7.50. Therefore, you should charge $7.50 for the dish to maintain a 30% food cost.

A bread recipe calls for 2 pounds of flour. How many ounces of flour is that?

• 16 oz

• 24 oz

• 32 oz

• 48 oz

Answer explanation

There are 16 ounces in a pound. Therefore, 2 pounds of flour equals 2 x 16 oz = 32 oz. Thus, the correct answer is 32 oz.

You purchase 15 pounds of raw carrots. After peeling and trimming, the usable weight is 10.5 pounds. What is the yield percentage?

• 60%

• 65%

• 70%

• 75%

Answer explanation

To find the yield percentage, divide the usable weight (10.5 pounds) by the original weight (15 pounds) and multiply by 100. (10.5 / 15) * 100 = 70%. Thus, the yield percentage is 70%.

You place a roast in the oven at 3:15 PM. It needs to cook for 2 hours and 45 minutes. What time should you remove it from the oven?

• 5:45 PM

• 6:00 PM

• 6:15 PM

• 6:30 PM

Answer explanation

To find the end time, add 2 hours and 45 minutes to 3:15 PM. Adding 2 hours brings you to 5:15 PM, then adding 45 minutes results in 6:00 PM. Therefore, you should remove the roast at 6:00 PM.