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 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 |
2 kg |
Biscuits |
470 g |
Oats |
250 g |
Milo |
500 g |
What is the difference between the total mass of biscuits collected and the total mass of milo 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
= 5 u
= 5 x 16
= 80
Number of packets of rice collected
= 80 - 14 - 16 - 28
= 22
(b)
Total mass of biscuits collected
= 14 x 470
= 6580 g
Total mass of milo collected
= 28 x 500
= 14000 g
Difference between the total mass of biscuits and the total mass of milo collected
= 14000 - 6580
= 7420 g
1000 g = 1 kg
7420 g = 7420 ÷ 1000 = 7.42 kg
Answer(s): (a) 22; (b) 7.42 kg