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 flour. How many packets of coffee were collected?
- The table shows the mass of each packet of food.
Food Items |
Mass of each packet |
Flour |
7 kg |
Milo |
420 g |
Coffee |
275 g |
Biscuits |
200 g |
What is the difference between the total mass of biscuits collected and the total mass of milo collected? Give your answer in kg.
(a)
Number of packets of flour collected = 1 u
1 u = 22
Total number of packets of food items collected
= 4 u
= 4 x 22
= 88
Number of packets of coffee collected
= 88 - 22 - 22 - 16
= 28
(b)
Total mass of biscuits collected
= 16 x 200
= 3200 g
Total mass of milo collected
= 22 x 420
= 9240 g
Difference in mass between the total mass of biscuits and the total mass of milo collected
= 9240 - 3200
= 6040 g
1000 g = 1 kg
6040 g = 6040 ÷ 1000 = 6.04 kg
Answer(s): (a) 28; (b) 6.04 kg