The bar graph shows the number of packets of different food collected in a donation drive.
- 13 of the total number of packets of food collected was dried fruits. How many packets of coffee were collected?
- The table shows the mass of each packet of food.
| Food Items |
Mass of each packet |
| Flour |
3 kg |
| Dried Fruits |
440 g |
| Oats |
265 g |
| Coffee |
300 g |
What is the difference between the total mass of oats collected and the total mass of flour collected? Give your answer in kg.
(a)
Number of packets of dried fruits collected = 1 u
1 u = 34
Total number of packets of food items collected
= 3 u
= 3 x 34
= 102
Number of packets of coffee collected
= 102 - 18 - 34 - 30
= 20
(b)
1 kg = 1000 g
3 kg = 3 x 1000 = 3000
Total mass of flour collected
= 18 x 3000
= 54000 g
Total mass of oats collected
= 30 x 265
= 7950 g
Difference between the total mass of oats and the total mass of flour collected
= 54000 - 7950
= 46050 g
1000 g = 1 kg
46050 g = 46050 ÷ 1000 = 46.05 kg
Answer(s): (a) 20; (b) 46.05 kg
