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 dried fruits were collected?
- The table shows the mass of each packet of food.
| Food Items |
Mass of each packet |
| Flour |
4 kg |
| Noodles |
450 g |
| Pasta |
480 g |
| Dried Fruits |
500 g |
What is the difference between the total mass of pasta collected and the total mass of flour collected? Give your answer in kg.
(a)
Number of packets of noodles collected = 1 u
1 u = 40
Total number of packets of food items collected
= 3 u
= 3 x 40
= 120
Number of packets of dried fruits collected
= 120 - 40 - 40 - 20
= 20
(b)
1 kg = 1000 g
4 kg = 4 x 1000 = 4000
Total mass of flour collected
= 40 x 4000
= 160000 g
Total mass of pasta collected
= 20 x 480
= 9600 g
Difference between the total mass of pasta and the total mass of flour collected
= 160000 - 9600
= 150400 g
1000 g = 1 kg
150400 g = 150400 ÷ 1000 = 150.4 kg
Answer(s): (a) 20; (b) 150.4 kg
