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 milo. How many packets of rice were collected?
- The table shows the mass of each packet of food.
Food Items |
Mass of each packet |
Rice |
4 kg |
Noodles |
295 g |
Milo |
280 g |
Oats |
200 g |
What is the difference between the total mass of noodles collected and the total mass of oats collected? Give your answer in kg.
(a)
Number of packets of milo collected= 1 u
1 u = 20
Total number of packets of food items collected
= 5 u
= 5 x 20
= 100
Number of packets of rice collected
= 100 - 14 - 20 - 36
= 30
(b)
Total mass of noodles collected
= 14 x 295
= 4130 g
Total mass of oats collected
= 36 x 200
= 7200 g
Difference between the total mass of noodles and the total mass of oats collected
= 7200 - 4130
= 3070 g
1000 g = 1 kg
3070 g = 3070 ÷ 1000 = 3.07 kg
Answer(s): (a) 30; (b) 3.07 kg