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 rice. How many packets of pasta were collected?
- The table shows the mass of each packet of food.
Food Items |
Mass of each packet |
Rice |
10 kg |
Tea |
355 g |
Pasta |
315 g |
Lentils |
200 g |
What is the difference between the total mass of lentils collected and the total mass of tea collected? Give your answer in kg.
(a)
Number of packets of rice collected = 1 u
1 u = 10
Total number of packets of food items collected
= 6 u
= 6 x 10
= 60
Number of packets of pasta collected
= 60 - 10 - 20 - 16
= 14
(b)
Total mass of lentils collected
= 16 x 200
= 3200 g
Total mass of tea collected
= 20 x 355
= 7100 g
Difference in mass between the total mass of lentils and the total mass of tea collected
= 7100 - 3200
= 3900 g
1000 g = 1 kg
3900 g = 3900 ÷ 1000 = 3.9 kg
Answer(s): (a) 14; (b) 3.9 kg