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 noodles. How many packets of flour were collected?
- The table shows the mass of each packet of food.
Food Items |
Mass of each packet |
Flour |
5 kg |
Oats |
370 g |
Noodles |
425 g |
Coffee |
400 g |
What is the difference between the total mass of oats collected and the total mass of coffee collected? Give your answer in kg.
(a)
Number of packets of noodles collected= 1 u
1 u = 40
Total number of packets of food items collected
= 3 u
= 3 x 40
= 120
Number of packets of flour collected
= 120 - 26 - 40 - 30
= 24
(b)
Total mass of oats collected
= 26 x 370
= 9620 g
Total mass of coffee collected
= 30 x 400
= 12000 g
Difference between the total mass of oats and the total mass of coffee collected
= 12000 - 9620
= 2380 g
1000 g = 1 kg
2380 g = 2380 ÷ 1000 = 2.38 kg
Answer(s): (a) 24; (b) 2.38 kg