The bar graph shows the number of packets of different food collected in a donation drive.
- 13 of the total number of packets of food collected was milo. How many packets of biscuits were collected?
- The table shows the mass of each packet of food.
Food Items |
Mass of each packet |
Rice |
8 kg |
Milo |
385 g |
Coffee |
250 g |
Biscuits |
500 g |
What is the difference between the total mass of coffee collected and the total mass of rice collected? Give your answer in kg.
(a)
Number of packets of milo collected = 1 u
1 u = 34
Total number of packets of food items collected
= 3 u
= 3 x 34
= 102
Number of packets of biscuits collected
= 102 - 32 - 34 - 14
= 22
(b)
1 kg = 1000 g
8 kg = 8 x 1000 = 8000
Total mass of rice collected
= 32 x 8000
= 256000 g
Total mass of coffee collected
= 14 x 250
= 3500 g
Difference between the total mass of coffee and the total mass of rice collected
= 256000 - 3500
= 252500 g
1000 g = 1 kg
252500 g = 252500 ÷ 1000 = 252.5 kg
Answer(s): (a) 22; (b) 252.5 kg