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 pasta. How many packets of dried fruits were collected?
- The table shows the mass of each packet of food.
| Food Items |
Mass of each packet |
| Flour |
7 kg |
| Pasta |
290 g |
| Biscuits |
355 g |
| Dried Fruits |
500 g |
What is the difference between the total mass of biscuits collected and the total mass of flour collected? Give your answer in kg.
(a)
Number of packets of pasta collected = 1 u
1 u = 12
Total number of packets of food items collected
= 6 u
= 6 x 12
= 72
Number of packets of dried fruits collected
= 72 - 10 - 12 - 20
= 30
(b)
1 kg = 1000 g
7 kg = 7 x 1000 = 7000
Total mass of flour collected
= 10 x 7000
= 70000 g
Total mass of biscuits collected
= 20 x 355
= 7100 g
Difference between the total mass of biscuits and the total mass of flour collected
= 70000 - 7100
= 62900 g
1000 g = 1 kg
62900 g = 62900 ÷ 1000 = 62.9 kg
Answer(s): (a) 30; (b) 62.9 kg
