The bar graph shows the number of packets of different food collected in a donation drive.
- 16 of the total number of packets of food collected was rice. How many packets of lentils were collected?
- The table shows the mass of each packet of food.
| Food Items |
Mass of each packet |
| Rice |
2 kg |
| Noodles |
300 g |
| Lentils |
340 g |
| Dried Nuts |
300 g |
What is the difference between the total mass of dried nuts collected and the total mass of noodles collected? Give your answer in kg.
(a)
Number of packets of rice collected = 1 u
1 u = 14
Total number of packets of food items collected
= 6 u
= 6 x 14
= 84
Number of packets of lentils collected
= 84 - 14 - 36 - 22
= 12
(b)
Total mass of dried nuts collected
= 22 x 300
= 6600 g
Total mass of noodles collected
= 36 x 300
= 10800 g
Difference in mass between the total mass of dried nuts and the total mass of noodles collected
= 10800 - 6600
= 4200 g
1000 g = 1 kg
4200 g = 4200 ÷ 1000 = 4.2 kg
Answer(s): (a) 12; (b) 4.2 kg
