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 lentils. How many packets of flour were collected?
- The table shows the mass of each packet of food.
Food Items |
Mass of each packet |
Flour |
2 kg |
Pasta |
365 g |
Lentils |
330 g |
Biscuits |
400 g |
What is the difference between the total mass of pasta collected and the total mass of biscuits collected? Give your answer in kg.
(a)
Number of packets of lentils collected= 1 u
1 u = 22
Total number of packets of food items collected
= 5 u
= 5 x 22
= 110
Number of packets of flour collected
= 110 - 30 - 22 - 38
= 20
(b)
Total mass of pasta collected
= 30 x 365
= 10950 g
Total mass of biscuits collected
= 38 x 400
= 15200 g
Difference between the total mass of pasta and the total mass of biscuits collected
= 15200 - 10950
= 4250 g
1000 g = 1 kg
4250 g = 4250 ÷ 1000 = 4.25 kg
Answer(s): (a) 20; (b) 4.25 kg