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 coffee. 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 |
Coffee |
415 g |
Milo |
390 g |
Dried Nuts |
400 g |
What is the difference between the total mass of milo collected and the total mass of flour collected? Give your answer in kg.
(a)
Number of packets of coffee collected = 1 u
1 u = 24
Total number of packets of food items collected
= 4 u
= 4 x 24
= 96
Number of packets of dried nuts collected
= 96 - 24 - 24 - 24
= 24
(b)
1 kg = 1000 g
4 kg = 4 x 1000 = 4000
Total mass of flour collected
= 24 x 4000
= 96000 g
Total mass of milo collected
= 24 x 390
= 9360 g
Difference between the total mass of milo and the total mass of flour collected
= 96000 - 9360
= 86640 g
1000 g = 1 kg
86640 g = 86640 ÷ 1000 = 86.64 kg
Answer(s): (a) 24; (b) 86.64 kg