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 cereals were collected?
- The table shows the mass of each packet of food.
Food Items |
Mass of each packet |
Flour |
2 kg |
Biscuits |
335 g |
Cereals |
455 g |
Tea |
300 g |
What is the difference between the total mass of tea collected and the total mass of biscuits collected? Give your answer in kg.
(a)
Number of packets of flour collected = 1 u
1 u = 34
Total number of packets of food items collected
= 3 u
= 3 x 34
= 102
Number of packets of cereals collected
= 102 - 34 - 34 - 18
= 16
(b)
Total mass of tea collected
= 18 x 300
= 5400 g
Total mass of biscuits collected
= 34 x 335
= 11390 g
Difference in mass between the total mass of tea and the total mass of biscuits collected
= 11390 - 5400
= 5990 g
1000 g = 1 kg
5990 g = 5990 ÷ 1000 = 5.99 kg
Answer(s): (a) 16; (b) 5.99 kg