Question 1:

The recipe for vegan cookies needs 10 oz flour and 1 lb sugar. The recipe for cheesecake needs 18 oz flour and 6 oz sugar. Which recipe needs more sugar?

Question 2:

Sophie had a party and wanted to make guacamole. She needed 4 ripe avocados. Each avocado weighs 200 grams. What was the total weight (measured in kg) of the 4 avocados?

Question 3:

The watermelon weighs 14 lbs 6 oz and the seeds inside weigh 2 oz. What is the total weight of the watermelon?

Question 4:

The latest album of a well-known hip-hop artist sold 354 copies last quarter and another 243 copies this quarter. If there were 754 copies released, how many copies of the album remain to be sold?

Question 5:

This evening, David had 8 adult male passengers, 16 adult female passengers, and the rest were seniors. There were 32 passengers altogether, and 4 of them were female seniors. What fraction of the passengers were seniors?

Question 6:

Eric ate 2 1/4 of an apple before he went to school and ate another 1 3/4 of an apple afterwards. How much apple did he eat?

Question 7:

A construction firm needs 500 kg of cement and 80 kg of sand for a project. If 320 kg of cement has already been delivered, how many kilograms of cement are still needed?

Question 8:

The original price of each pencil is $0.50. After 3 o'clock in the afternoon, the price will be changed to $1.25 for 4 pencils. What is the price difference between buying 30 pencils before and after 3 o'clock?

Question 9:

Each slice of pizza has 4 ounces of cheese. If the children at the party want to each have 2 slices, how many pounds of cheese does Mrs. Garcia need to buy?

Question 10:

What is the weight of a 7-year-old boy if the average weight for his age is 52 lbs and he is 2 lbs heavier than average?

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Answer Keys

Question 1: The recipe for vegan cookies needs more sugar.

Question 2: 0.8 kg

Question 3: The total weight of the watermelon is 14 lbs 8 oz.

Question 4: 157

Question 5: 8/32 or 1/4 of the passengers

Question 6: 4 apples

Question 7: 180 kilograms of cement are still needed.

Question 8: $1.25

Question 9: 4 pounds

Question 10: The weight of the 7-year-old boy is 54 lbs.

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Solutions

Question 1
To compare the amount of sugar needed in each recipe, we need to convert the units of measurement for sugar to the same unit. Since 1 pound is equal to 16 ounces, the recipe for vegan cookies needs 16 + 1 = 17 ounces of sugar, while the recipe for cheesecake needs only 6 ounces of sugar. Therefore, the recipe for vegan cookies needs more sugar.

Question 2
To find the total weight of the 4 avocados, we need to multiply the weight of each avocado by the number of avocados. Each avocado weighs 200 grams which is 0.2 kg. 4 avocados x 0.2 kg = 0.8 kg.

Question 3
To find the total weight, we just need to add the weight of the watermelon without seeds (14 lbs 6 oz) and the weight of the seeds (2 oz) together. Using simple addition, 14 lbs 6 oz + 2 oz = 14 lbs 8 oz. Therefore, the total weight of the watermelon is 14 lbs 8 oz.

Question 4
To find the number of copies of the album that remain to be sold, we need to subtract the number of copies sold from the total number of copies released. Therefore, we can use the following equation: Total copies released - Copies sold = Copies remaining to be sold. Substituting the given values, we get: 754 - (354 + 243) = 157. Therefore, there are 157 copies of the album that remain to be sold.

Question 5
To find the fraction of the passengers who were seniors, we need to subtract the number of adult male and female passengers from the total number of passengers and then divide by the total number of passengers. The number of adult passengers is 8 + 16 = 24. So, the number of senior passengers is 32 - 24 = 8. The fraction of senior passengers is 8/32 or 1/4.

Question 7
Subtract the amount of cement already delivered (320 kg) from the total amount of cement needed (500 kg) to get the amount still needed: 500 kg - 320 kg = 180 kg.

Question 8
1. Calculate the price of 30 pencils before 3 o'clock: Price of one pencil = $0.50 Total price of 30 pencils = $0.50 * 30 = $15 2. Calculate the price of 30 pencils after 3 o'clock: Price of 4 pencils = $1.25 Price of one pencil = $1.25 / 4 = $0.3125 Total price of 30 pencils = $0.3125 * 30 = $9.375 3. Price difference = Price before 3 o'clock - Price after 3 o'clock Price difference = $15 - $9.375 Price difference = $5.625

Question 10
Add 2 lbs to the average weight: 52 + 2 = 54. Therefore, the weight of the 7-year-old boy is 54 lbs.