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 milo. How many packets of rice were collected?
- The table shows the mass of each packet of food.
Food Items |
Mass of each packet |
Rice |
6 kg |
Noodles |
330 g |
Milo |
310 g |
Cereals |
400 g |
What is the difference between the total mass of noodles collected and the total mass of cereals collected? Give your answer in kg.
(a)
Number of packets of milo collected= 1 u
1 u = 14
Total number of packets of food items collected
= 6 u
= 6 x 14
= 84
Number of packets of rice collected
= 84 - 22 - 14 - 20
= 28
(b)
Total mass of noodles collected
= 22 x 330
= 7260 g
Total mass of cereals collected
= 20 x 400
= 8000 g
Difference between the total mass of noodles and the total mass of cereals collected
= 8000 - 7260
= 740 g
1000 g = 1 kg
740 g = 740 ÷ 1000 = 0.74 kg
Answer(s): (a) 28; (b) 0.74 kg