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 noodles. How many packets of cereals were collected?
- The table shows the mass of each packet of food.
Food Items |
Mass of each packet |
Flour |
6 kg |
Noodles |
260 g |
Milo |
270 g |
Cereals |
300 g |
What is the difference between the total mass of milo collected and the total mass of flour collected? Give your answer in kg.
(a)
Number of packets of noodles collected = 1 u
1 u = 32
Total number of packets of food items collected
= 3 u
= 3 x 32
= 96
Number of packets of cereals collected
= 96 - 18 - 32 - 20
= 26
(b)
1 kg = 1000 g
6 kg = 6 x 1000 = 6000
Total mass of flour collected
= 18 x 6000
= 108000 g
Total mass of milo collected
= 20 x 270
= 5400 g
Difference between the total mass of milo and the total mass of flour collected
= 108000 - 5400
= 102600 g
1000 g = 1 kg
102600 g = 102600 ÷ 1000 = 102.6 kg
Answer(s): (a) 26; (b) 102.6 kg