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 lentils. 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 |
7 kg |
| Lentils |
325 g |
| Noodles |
270 g |
| Dried Fruits |
400 g |
What is the difference between the total mass of noodles collected and the total mass of flour collected? Give your answer in kg.
(a)
Number of packets of lentils collected = 1 u
1 u = 38
Total number of packets of food items collected
= 3 u
= 3 x 38
= 114
Number of packets of dried fruits collected
= 114 - 32 - 38 - 16
= 28
(b)
1 kg = 1000 g
7 kg = 7 x 1000 = 7000
Total mass of flour collected
= 32 x 7000
= 224000 g
Total mass of noodles collected
= 16 x 270
= 4320 g
Difference between the total mass of noodles and the total mass of flour collected
= 224000 - 4320
= 219680 g
1000 g = 1 kg
219680 g = 219680 ÷ 1000 = 219.68 kg
Answer(s): (a) 28; (b) 219.68 kg
