The bar graph shows the number of packets of different food collected in a donation drive.
- 15 of the total number of packets of food collected was rice. How many packets of tea were collected?
- The table shows the mass of each packet of food.
Food Items |
Mass of each packet |
Rice |
4 kg |
Pasta |
480 g |
Tea |
280 g |
Milo |
200 g |
What is the difference between the total mass of milo collected and the total mass of pasta collected? Give your answer in kg.
(a)
Number of packets of rice collected = 1 u
1 u = 18
Total number of packets of food items collected
= 5 u
= 5 x 18
= 90
Number of packets of tea collected
= 90 - 18 - 28 - 30
= 14
(b)
Total mass of milo collected
= 30 x 200
= 6000 g
Total mass of pasta collected
= 28 x 480
= 13440 g
Difference in mass between the total mass of milo and the total mass of pasta collected
= 13440 - 6000
= 7440 g
1000 g = 1 kg
7440 g = 7440 ÷ 1000 = 7.44 kg
Answer(s): (a) 14; (b) 7.44 kg