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 noodles. How many packets of biscuits were collected?
- The table shows the mass of each packet of food.
| Food Items |
Mass of each packet |
| Rice |
4 kg |
| Noodles |
265 g |
| Dried Fruits |
460 g |
| Biscuits |
200 g |
What is the difference between the total mass of dried fruits collected and the total mass of rice collected? Give your answer in kg.
(a)
Number of packets of noodles collected = 1 u
1 u = 24
Total number of packets of food items collected
= 4 u
= 4 x 24
= 96
Number of packets of biscuits collected
= 96 - 24 - 24 - 20
= 28
(b)
1 kg = 1000 g
4 kg = 4 x 1000 = 4000
Total mass of rice collected
= 24 x 4000
= 96000 g
Total mass of dried fruits collected
= 20 x 460
= 9200 g
Difference between the total mass of dried fruits and the total mass of rice collected
= 96000 - 9200
= 86800 g
1000 g = 1 kg
86800 g = 86800 ÷ 1000 = 86.8 kg
Answer(s): (a) 28; (b) 86.8 kg
