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 cereals. How many packets of milo were collected?
- The table shows the mass of each packet of food.
| Food Items |
Mass of each packet |
| Rice |
4 kg |
| Cereals |
445 g |
| Tea |
415 g |
| Milo |
200 g |
What is the difference between the total mass of tea collected and the total mass of rice collected? Give your answer in kg.
(a)
Number of packets of cereals collected = 1 u
1 u = 22
Total number of packets of food items collected
= 4 u
= 4 x 22
= 88
Number of packets of milo collected
= 88 - 10 - 22 - 32
= 24
(b)
1 kg = 1000 g
4 kg = 4 x 1000 = 4000
Total mass of rice collected
= 10 x 4000
= 40000 g
Total mass of tea collected
= 32 x 415
= 13280 g
Difference between the total mass of tea and the total mass of rice collected
= 40000 - 13280
= 26720 g
1000 g = 1 kg
26720 g = 26720 ÷ 1000 = 26.72 kg
Answer(s): (a) 24; (b) 26.72 kg
