The table below shows the number of kilojoules that men and women use per day:
| \text{Age} | \text{Activity Level} | \text{Women (kJ/day)} | \text{Men (kJ/day)} |
|---|---|---|---|
| 18 - 35 | \text{inactive} | 8000 | 10\,500 |
| 18 - 35 | \text{active} | 9000 | 12\,500 |
| 18 - 35 | \text{very active} | 10\,500 | 14\,800 |
| 36 - 70 | \text{inactive} | 8000 | 10\,000 |
| 36 - 70 | \text{active} | 8800 | 11\,800 |
| 36 - 70 | \text{very active} | 10\,400 | 14\,300 |
How many kilojoules would a very active Woman in her 60\text{'s} require per day?
Bob is in his 40\text{'s} and leads an inactive lifestyle. Today he has a small Greek salad, which contains 446\text{ kJ}. What percentage of his recommended kilojoule intake is this? Round your answer to one decimal place.
Noah, who is 26 years old, has a very active lifestyle. Today his breakfast contains 2540\text{ kJ}.
How many kilojoules does this leave for the rest of the day?
What percentage of his daily kilojoule requirements is the breakfast? Round your answer to one decimal place.
Consider the following table of food items and their energy levels:
Carl has a sirloin steak with a banana and carrot for lunch, and a glass of milk to go along with it. Later in the afternoon, he also has some yoghurt. If Carl is 43 years old and leads an inactive lifestyle, what percentage of his daily kilojoule requirements has he consumed already?
Give your answer as a percentage correct to one decimal place.
Vincent has a some jam on toast for breakfast and a pie for lunch. He later has some sour worms as a snack. Vincent has a daily activity level of "inactive" and is a 33 year old male.
How many kilojoules should Vincent consume for dinner to reach his daily required intake?
| \text{Food} | \text{Energy (kJ)} |
|---|---|
| \text{Sirloin steak} | 1179 |
| \text{Banana} | 56 |
| \text{Carrot} | 86 |
| \text{Milk} | 622 |
| \text{Yoghurt} | 583 |
| \text{Jam toast} | 490 |
| \text{Scrambled eggs} | 750 |
| \text{Cheese sandwich} | 1100 |
| \text{Pie} | 2330 |
| \text{Sour worms} | 830 |
| \text{Chocolate bar} | 1050 |
Xavier, an "inactive" 20 year old male, is eating at a fast food restaurant. The nutritional information for the restaurant's food is in the table below:
If Xavier only ate ultimate burgers for one day, how many whole ultimate burgers could he eat without going over his daily energy requirement?
If Xavier just has one of every item on the menu, how many kilojoules will he have consumed?
If Xavier just has one of every item on the menu, will he be above or below his daily energy requirement?
| \text{Food} | \text{Energy (kJ)} |
|---|---|
| \text{Nuggets} | 2490 |
| \text{Ordinary burger} | 2000 |
| \text{Ultimate burger} | 2500 |
| \text{Chicken salad} | 1250 |
| \text{Apple slice} | 190 |
| \text{Fries (L)} | 1840 |
A school is to provide food and drink for students during a school excursion. The food and drink for each student must have a total energy value of at least 2450\text{ kJ}. The food and drink items available to the school to purchase are listed in the following table:
Determine if the following meals will meet the 2450 \text{ kJ} minimum requirement:
3 bowls of spaghetti bolognese and 1 serving of juice.
8 apples.
A tub of yoghurt and a falafel wrap.
A tub of yoghurt, a falafel wrap and juice.
| \text{Food} | \text{Energy (kJ)} |
|---|---|
| \text{Spaghetti bolognese} | 640 |
| \text{Yoghurt} | 1120 |
| \text{Falafel wrap} | 1270 |
| \text{Apple} | 310 |
| \text{Cheese and buscuits} | 930 |
| \text{Juice} | 470 |
Victoria sometimes uses canola spread on her bread, and sometimes uses hummus. She wants to compare the nutrition of these two products:
| Canola spread | ||
|---|---|---|
| \text{Serving per} \\ \text{package - 75} | \text{Serving} \\ \text{size - 4 g} | |
| \text{Per} \\ \text{Serve} | \text{Per} \\ \text{100 g} | |
| \text{Energy (kJ)} | 89 | 2235 |
| \text{Protein (g)} | \text{Less}\\ \text{than 1 g} | \text{Less}\\ \text{than 1 g} |
| \text{Fat (g)} | ||
| \text{Total} | 2.40 | 60 |
| \text{Saturated} | 1.02 | 25.5 |
| \text{Carbohydrate (g)} | ||
| \text{Total} | \text{Less}\\ \text{than 1 g} | 1.4 |
| \text{Sugars} | \text{Less}\\ \text{than 1 g} | \text{Less}\\ \text{than 1 g} |
| \text{Sodium (g)} | 111 | 370 |
| Hummus | ||
|---|---|---|
| \text{Serving per} \\ \text{package - 10} | \text{Serving} \\ \text{size - 30 g} | |
| \text{Per} \\ \text{Serve} | \text{Per} \\ \text{100 g} | |
| \text{Energy (kJ)} | 254 | 848 |
| \text{Protein (g)} | 1.74 | 5.8 |
| \text{Fat (g)} | ||
| \text{Total} | 4.68 | 15.6 |
| \text{Saturated} | \text{Less}\\ \text{than 1 g} | 1.7 |
| \text{Carbohydrate (g)} | ||
| \text{Total} | 1.89 | 6.3 |
| \text{Sugars} | \text{Less}\\ \text{than 1 g} | \text{Less}\\ \text{than 1 g} |
| \text{Sodium (g)} | 101 | 337 |
Which product has fewer kilojoules per serving?
Victoria has 14 \text{ g} of either hummus or canola spread on her bread. Which spread will have fewer kilojoules per slice of bread?
The table shows certain values as "Less than 1 \text{ g}". Given the information in the table, what would the amount of saturated fat be in one serving of hummus?
The nutritional information on a carton of soy milk is shown below:
| Nutritional information | ||
|---|---|---|
| \text{Serving per package - 4} | \text{Serving size - 250 g} | |
| \text{Per Serve} | \text{Per 100 g} | |
| \text{Energy (kJ)} | 135 | 54 |
| \text{Protein (g)} | 8.25 | 3.3 |
| \text{Total Fat (g)} | 4.50 | 1.8 |
| \text{Saturated Fat (g)} | 0.50 | 0.2 |
| \text{Total Carbohydrate (g)} | 15.00 | 6 |
| \text{Sugars} | 10.00 | 4 |
| \text{Sodium (g)} | 128 | 51 |
Find the number of kilojoules in:
An entire carton of soy milk.
Harris ate a packet of chips that contains 460 \text{ kJ} of energy. How many Calories does he need to use to burn off the energy from the chips? Round your answer to the nearest whole number.
The treadmill at the gym displays the estimated kilocalories that a person has used while on the machine. Vincent was using the treadmill and used 782 \text{ kcal}. Convert this into kilojoules.
Ursula is training for a charity walk. In one of her training sessions, she wants to burn 2751 \text{ kJ}. How many kilocalories does she want to burn? Round your answer to the nearest whole number.
Aoife went for a run and burned 1400\text{ kJ}. She then goes to a cafe for lunch that serves the items shown in the table:
Aoife wants to buy one item to eat and one drink, but she needs to eat less energy than she used during her run. What could she get for lunch?
| Item | Calories |
|---|---|
| \text{Hamburger} | 295 |
| \text{Chips} | 312 |
| \text{Salad} | 50 |
| \text{Sandwich} | 200 |
| \text{Coke} | 150 |
| \text{Orange juice} | 110 |
| \text{Water} | 0 |
The table shows the time needed for Valentina to burn 500 Calories for various activities:
How long would Valentina have to ride a bike to burn 1500 Calories?
How long would Valentina have to walk the dog to burn 250 Calories?
| Activity | Time |
|---|---|
| \text{Cycling} | 51 \text{ minutes} |
| \text{Golf} | 1 \text{ hour} |
| \text{Running} | 38 \text{ minutes} |
| \text{Soccer} | 43 \text{ minutes} |
| \text{Swimming} | 43 \text{ minutes} |
| \text{Touch football} | 38 \text{ minutes} |
| \text{Skateboarding} | 1 \text{ hour} |
| \text{Skiing} | 43 \text{ minutes} |
| \text{Housework} | 2 \text{ hours} |
| \text{Walking the dog} | 2 \text{ hours} |
| \text{Stair climbing} | 1 \text{ hour} |
The table shows the time needed for John, a fit 30 year old man, to burn 500 Calories for various activities:
How long would John have to run to burn 1500 Calories?
How long would John have to ski to burn 125 Calories?
| Activity | Time |
|---|---|
| \text{Bicycling} | 1 \text{ hour} |
| \text{Golf} | 2 \text{ hours} |
| \text{Running} | 56 \text{ minutes} |
| \text{Soccer} | 1 \text{ hour} |
| \text{Swimming} | 1 \text{ hour} |
| \text{Touch football} | 56 \text{ minutes} |
| \text{Skateboarding} | 1 \text{ hour} |
| \text{Skiing} | 1 \text{ hour} |
| \text{Housework} | 3 \text{ hours} |
| \text{Walking the dog} | 2 \text{ hours} |
| \text{Stair climbing} | 2 \text{ hours} |
The graph shows the number of kilojoules that Kenneth burns in 10 minutes of each of these activities. How long would he need to spend playing golf to burn off the 3 cups of soda that contain 627\text{ kJ} each? Round your answer to the nearest minute.
The table shows the number of kilojoules that Kenneth burns in 10 minutes while doing each of the activities:
What activity could Kenneth do, and for how many minutes, to burn off the 3 cups of soda that contain 627 \text{ kJ} each? Round your answer to the nearest minute.
| Activity | Kilojoules |
|---|---|
| \text{Bicycling} | 283 |
| \text{Golf} | 203 |
| \text{Running} | 377 |
| \text{Soccer} | 330 |
| \text{Swimming} | 330 |
| \text{Skateboarding} | 236 |
| \text{Walking} | 141 |
Consider the following table of activities:
Do you burn more energy standing relaxed for 5 hours or vacuuming for 0.5 hours?
Jack, who weighs 80 \text{ kg}, goes for a run every morning for 1.5 hours. He then drives to work for 30 minutes, sits quietly while at work for 7.5 hours and then drives home, which takes another 30 minutes.
How much energy did he use in total for these tasks?
Isabelle goes for a run every morning for 30 minutes, and in the evening, she runs with the dog for another 30 minutes. She drives to work in the morning and drives back in the evening, and this takes 45 minutes each way. She also walks rapidly most of the day between patients and floors at the hospital for about 6 hours, and sits quietly for the other 2 hours whilst writing up notes.
How much energy does she use in total for these tasks if she weighs 60 \text{ kg}?
| \text{Activity} | \text{Energy}\\ \text{(kJ/kg/h)} |
|---|---|
| \text{Sitting}\\ \text{quietly} | 1.7 |
| \text{Writing} | 1.7 |
| \text{Standing}\\ \text{relaxed} | 2.1 |
| \text{Driving} | 3.8 |
| \text{Vacuuming} | 11.3 |
| \text{Walking}\\ \text{rapidly} | 14.2 |
| \text{Running} | 29.3 |
| \text{Swimming}\\ \text{(4 km per hour)} | 33 |
| \text{Rowing} | 67 |