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 oats were collected?
- The table shows the mass of each packet of food.
| Food Items |
Mass of each packet |
| Rice |
8 kg |
| Tea |
425 g |
| Oats |
425 g |
| Pasta |
200 g |
What is the difference between the total mass of pasta collected and the total mass of tea collected? Give your answer in kg.
(a)
Number of packets of rice collected = 1 u
1 u = 22
Total number of packets of food items collected
= 4 u
= 4 x 22
= 88
Number of packets of oats collected
= 88 - 22 - 26 - 20
= 20
(b)
Total mass of pasta collected
= 20 x 200
= 4000 g
Total mass of tea collected
= 26 x 425
= 11050 g
Difference in mass between the total mass of pasta and the total mass of tea collected
= 11050 - 4000
= 7050 g
1000 g = 1 kg
7050 g = 7050 ÷ 1000 = 7.05 kg
Answer(s): (a) 20; (b) 7.05 kg
