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 rice were collected?
- The table shows the mass of each packet of food.
Food Items |
Mass of each packet |
Rice |
3 kg |
Tea |
290 g |
Coffee |
295 g |
Milo |
300 g |
What is the difference between the total mass of tea collected and the total mass of milo collected? Give your answer in kg.
(a)
Number of packets of coffee collected= 1 u
1 u = 30
Total number of packets of food items collected
= 4 u
= 4 x 30
= 120
Number of packets of rice collected
= 120 - 32 - 30 - 38
= 20
(b)
Total mass of tea collected
= 32 x 290
= 9280 g
Total mass of milo collected
= 38 x 300
= 11400 g
Difference between the total mass of tea and the total mass of milo collected
= 11400 - 9280
= 2120 g
1000 g = 1 kg
2120 g = 2120 ÷ 1000 = 2.12 kg
Answer(s): (a) 20; (b) 2.12 kg