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 rice. How many packets of dried fruits were collected?
- The table shows the mass of each packet of food.
| Food Items |
Mass of each packet |
| Rice |
6 kg |
| Noodles |
475 g |
| Dried Fruits |
390 g |
| Cereals |
300 g |
What is the difference between the total mass of cereals collected and the total mass of noodles collected? Give your answer in kg.
(a)
Number of packets of rice collected = 1 u
1 u = 26
Total number of packets of food items collected
= 3 u
= 3 x 26
= 78
Number of packets of dried fruits collected
= 78 - 26 - 18 - 12
= 22
(b)
Total mass of cereals collected
= 12 x 300
= 3600 g
Total mass of noodles collected
= 18 x 475
= 8550 g
Difference in mass between the total mass of cereals and the total mass of noodles collected
= 8550 - 3600
= 4950 g
1000 g = 1 kg
4950 g = 4950 ÷ 1000 = 4.95 kg
Answer(s): (a) 22; (b) 4.95 kg
