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 cereals. How many packets of dried nuts were collected?
- The table shows the mass of each packet of food.
| Food Items |
Mass of each packet |
| Flour |
4 kg |
| Cereals |
300 g |
| Oats |
485 g |
| Dried Nuts |
300 g |
What is the difference between the total mass of oats collected and the total mass of flour collected? Give your answer in kg.
(a)
Number of packets of cereals collected = 1 u
1 u = 12
Total number of packets of food items collected
= 4 u
= 4 x 12
= 48
Number of packets of dried nuts collected
= 48 - 10 - 12 - 10
= 16
(b)
1 kg = 1000 g
4 kg = 4 x 1000 = 4000
Total mass of flour collected
= 10 x 4000
= 40000 g
Total mass of oats collected
= 10 x 485
= 4850 g
Difference between the total mass of oats and the total mass of flour collected
= 40000 - 4850
= 35150 g
1000 g = 1 kg
35150 g = 35150 ÷ 1000 = 35.15 kg
Answer(s): (a) 16; (b) 35.15 kg
