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 coffee. How many packets of rice were collected?
- The table shows the mass of each packet of food.
| Food Items |
Mass of each packet |
| Rice |
6 kg |
| Dried Nuts |
270 g |
| Coffee |
370 g |
| Pasta |
400 g |
What is the difference between the total mass of dried nuts collected and the total mass of pasta collected? Give your answer in kg.
(a)
Number of packets of coffee collected= 1 u
1 u = 40
Total number of packets of food items collected
= 3 u
= 3 x 40
= 120
Number of packets of rice collected
= 120 - 14 - 40 - 36
= 30
(b)
Total mass of dried nuts collected
= 14 x 270
= 3780 g
Total mass of pasta collected
= 36 x 400
= 14400 g
Difference between the total mass of dried nuts and the total mass of pasta collected
= 14400 - 3780
= 10620 g
1000 g = 1 kg
10620 g = 10620 ÷ 1000 = 10.62 kg
Answer(s): (a) 30; (b) 10.62 kg
