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 coffee. How many packets of flour were collected?
- The table shows the mass of each packet of food.
Food Items |
Mass of each packet |
Flour |
2 kg |
Lentils |
490 g |
Coffee |
405 g |
Pasta |
500 g |
What is the difference between the total mass of lentils collected and the total mass of pasta collected? Give your answer in kg.
(a)
Number of packets of coffee 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 - 14 - 36 - 40
= 18
(b)
Total mass of lentils collected
= 14 x 490
= 6860 g
Total mass of pasta collected
= 40 x 500
= 20000 g
Difference between the total mass of lentils and the total mass of pasta collected
= 20000 - 6860
= 13140 g
1000 g = 1 kg
13140 g = 13140 ÷ 1000 = 13.14 kg
Answer(s): (a) 18; (b) 13.14 kg