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 oats. How many packets of flour were collected?
- The table shows the mass of each packet of food.
Food Items |
Mass of each packet |
Flour |
8 kg |
Noodles |
495 g |
Oats |
250 g |
Tea |
400 g |
What is the difference between the total mass of noodles collected and the total mass of tea collected? Give your answer in kg.
(a)
Number of packets of oats collected= 1 u
1 u = 36
Total number of packets of food items collected
= 3 u
= 3 x 36
= 108
Number of packets of flour collected
= 108 - 16 - 36 - 34
= 22
(b)
Total mass of noodles collected
= 16 x 495
= 7920 g
Total mass of tea collected
= 34 x 400
= 13600 g
Difference between the total mass of noodles and the total mass of tea collected
= 13600 - 7920
= 5680 g
1000 g = 1 kg
5680 g = 5680 ÷ 1000 = 5.68 kg
Answer(s): (a) 22; (b) 5.68 kg