The bar graph shows the number of packets of different food collected in a donation drive.
- 14 of the total number of packets of food collected was oats. How many packets of rice were collected?
- The table shows the mass of each packet of food.
Food Items |
Mass of each packet |
Rice |
1 kg |
Coffee |
415 g |
Oats |
340 g |
Lentils |
500 g |
What is the difference between the total mass of coffee collected and the total mass of lentils collected? Give your answer in kg.
(a)
Number of packets of oats collected= 1 u
1 u = 16
Total number of packets of food items collected
= 4 u
= 4 x 16
= 64
Number of packets of rice collected
= 64 - 10 - 16 - 12
= 26
(b)
Total mass of coffee collected
= 10 x 415
= 4150 g
Total mass of lentils collected
= 12 x 500
= 6000 g
Difference between the total mass of coffee and the total mass of lentils collected
= 6000 - 4150
= 1850 g
1000 g = 1 kg
1850 g = 1850 ÷ 1000 = 1.85 kg
Answer(s): (a) 26; (b) 1.85 kg