The bar graph shows the number of packets of different food collected in a donation drive.
- 15 of the total number of packets of food collected was cereals. How many packets of rice were collected?
- The table shows the mass of each packet of food.
Food Items |
Mass of each packet |
Rice |
8 kg |
Tea |
250 g |
Cereals |
250 g |
Oats |
500 g |
What is the difference between the total mass of tea collected and the total mass of oats collected? Give your answer in kg.
(a)
Number of packets of cereals collected= 1 u
1 u = 14
Total number of packets of food items collected
= 5 u
= 5 x 14
= 70
Number of packets of rice collected
= 70 - 24 - 14 - 18
= 14
(b)
Total mass of tea collected
= 24 x 250
= 6000 g
Total mass of oats collected
= 18 x 500
= 9000 g
Difference between the total mass of tea and the total mass of oats collected
= 9000 - 6000
= 3000 g
1000 g = 1 kg
3000 g = 3000 ÷ 1000 = 3 kg
Answer(s): (a) 14; (b) 3 kg