The bar graph shows the number of packets of different food collected in a donation drive.
- 14 of the total number of packets of food collected was milo. How many packets of flour were collected?
- The table shows the mass of each packet of food.
Food Items |
Mass of each packet |
Flour |
8 kg |
Coffee |
440 g |
Milo |
280 g |
Biscuits |
400 g |
What is the difference between the total mass of coffee collected and the total mass of biscuits collected? Give your answer in kg.
(a)
Number of packets of milo collected= 1 u
1 u = 20
Total number of packets of food items collected
= 4 u
= 4 x 20
= 80
Number of packets of flour collected
= 80 - 12 - 20 - 24
= 24
(b)
Total mass of coffee collected
= 12 x 440
= 5280 g
Total mass of biscuits collected
= 24 x 400
= 9600 g
Difference between the total mass of coffee and the total mass of biscuits collected
= 9600 - 5280
= 4320 g
1000 g = 1 kg
4320 g = 4320 ÷ 1000 = 4.32 kg
Answer(s): (a) 24; (b) 4.32 kg