The bar graph shows the number of packets of different food collected in a donation drive.
- 16 of the total number of packets of food collected was rice. How many packets of milo were collected?
- The table shows the mass of each packet of food.
Food Items |
Mass of each packet |
Rice |
5 kg |
Lentils |
325 g |
Milo |
425 g |
Biscuits |
300 g |
What is the difference between the total mass of biscuits collected and the total mass of lentils collected? Give your answer in kg.
(a)
Number of packets of rice collected = 1 u
1 u = 16
Total number of packets of food items collected
= 6 u
= 6 x 16
= 96
Number of packets of milo collected
= 96 - 16 - 28 - 22
= 30
(b)
Total mass of biscuits collected
= 22 x 300
= 6600 g
Total mass of lentils collected
= 28 x 325
= 9100 g
Difference in mass between the total mass of biscuits and the total mass of lentils collected
= 9100 - 6600
= 2500 g
1000 g = 1 kg
2500 g = 2500 ÷ 1000 = 2.5 kg
Answer(s): (a) 30; (b) 2.5 kg