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 dried nuts. How many packets of flour were collected?
- The table shows the mass of each packet of food.
Food Items |
Mass of each packet |
Flour |
3 kg |
Oats |
385 g |
Dried Nuts |
370 g |
Coffee |
500 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 dried nuts collected= 1 u
1 u = 38
Total number of packets of food items collected
= 3 u
= 3 x 38
= 114
Number of packets of flour collected
= 114 - 14 - 38 - 36
= 26
(b)
Total mass of oats collected
= 14 x 385
= 5390 g
Total mass of coffee collected
= 36 x 500
= 18000 g
Difference between the total mass of oats and the total mass of coffee collected
= 18000 - 5390
= 12610 g
1000 g = 1 kg
12610 g = 12610 ÷ 1000 = 12.61 kg
Answer(s): (a) 26; (b) 12.61 kg