The bar graph shows the number of packets of different food collected in a donation drive.
- 13 of the total number of packets of food collected was flour. How many packets of dried fruits were collected?
- The table shows the mass of each packet of food.
Food Items |
Mass of each packet |
Flour |
3 kg |
Biscuits |
435 g |
Dried Fruits |
390 g |
Cereals |
200 g |
What is the difference between the total mass of cereals collected and the total mass of biscuits collected? Give your answer in kg.
(a)
Number of packets of flour collected = 1 u
1 u = 32
Total number of packets of food items collected
= 3 u
= 3 x 32
= 96
Number of packets of dried fruits collected
= 96 - 32 - 24 - 18
= 22
(b)
Total mass of cereals collected
= 18 x 200
= 3600 g
Total mass of biscuits collected
= 24 x 435
= 10440 g
Difference in mass between the total mass of cereals and the total mass of biscuits collected
= 10440 - 3600
= 6840 g
1000 g = 1 kg
6840 g = 6840 ÷ 1000 = 6.84 kg
Answer(s): (a) 22; (b) 6.84 kg