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 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 |
1 kg |
Tea |
295 g |
Coffee |
420 g |
Lentils |
400 g |
What is the difference between the total mass of tea collected and the total mass of lentils collected? Give your answer in kg.
(a)
Number of packets of coffee collected= 1 u
1 u = 12
Total number of packets of food items collected
= 6 u
= 6 x 12
= 72
Number of packets of flour collected
= 72 - 14 - 12 - 18
= 28
(b)
Total mass of tea collected
= 14 x 295
= 4130 g
Total mass of lentils collected
= 18 x 400
= 7200 g
Difference between the total mass of tea and the total mass of lentils collected
= 7200 - 4130
= 3070 g
1000 g = 1 kg
3070 g = 3070 ÷ 1000 = 3.07 kg
Answer(s): (a) 28; (b) 3.07 kg