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 rice. How many packets of milo were collected?
- The table shows the mass of each packet of food.
| Food Items |
Mass of each packet |
| Rice |
3 kg |
| Cereals |
360 g |
| Milo |
285 g |
| Coffee |
400 g |
What is the difference between the total mass of coffee collected and the total mass of cereals collected? Give your answer in kg.
(a)
Number of packets of rice collected = 1 u
1 u = 26
Total number of packets of food items collected
= 4 u
= 4 x 26
= 104
Number of packets of milo collected
= 104 - 26 - 34 - 22
= 22
(b)
Total mass of coffee collected
= 22 x 400
= 8800 g
Total mass of cereals collected
= 34 x 360
= 12240 g
Difference in mass between the total mass of coffee and the total mass of cereals collected
= 12240 - 8800
= 3440 g
1000 g = 1 kg
3440 g = 3440 ÷ 1000 = 3.44 kg
Answer(s): (a) 22; (b) 3.44 kg
