The bar graph shows the number of packets of different food collected in a donation drive.
- 14 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 |
8 kg |
Biscuits |
475 g |
Cereals |
465 g |
Noodles |
300 g |
What is the difference between the total mass of noodles collected and the total mass of biscuits collected? Give your answer in kg.
(a)
Number of packets of flour collected = 1 u
1 u = 18
Total number of packets of food items collected
= 4 u
= 4 x 18
= 72
Number of packets of cereals collected
= 72 - 18 - 22 - 14
= 18
(b)
Total mass of noodles collected
= 14 x 300
= 4200 g
Total mass of biscuits collected
= 22 x 475
= 10450 g
Difference in mass between the total mass of noodles and the total mass of biscuits collected
= 10450 - 4200
= 6250 g
1000 g = 1 kg
6250 g = 6250 ÷ 1000 = 6.25 kg
Answer(s): (a) 18; (b) 6.25 kg