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 tea. How many packets of rice were collected?
- The table shows the mass of each packet of food.
| Food Items |
Mass of each packet |
| Rice |
5 kg |
| Coffee |
460 g |
| Tea |
290 g |
| Lentils |
400 g |
What is the difference between the total mass of coffee collected and the total mass of lentils collected? Give your answer in kg.
(a)
Number of packets of tea collected= 1 u
1 u = 32
Total number of packets of food items collected
= 3 u
= 3 x 32
= 96
Number of packets of rice collected
= 96 - 12 - 32 - 26
= 26
(b)
Total mass of coffee collected
= 12 x 460
= 5520 g
Total mass of lentils collected
= 26 x 400
= 10400 g
Difference between the total mass of coffee and the total mass of lentils collected
= 10400 - 5520
= 4880 g
1000 g = 1 kg
4880 g = 4880 ÷ 1000 = 4.88 kg
Answer(s): (a) 26; (b) 4.88 kg
