The bar graph shows the number of packets of different food collected in a donation drive.
- 14 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 |
5 kg |
| Cereals |
410 g |
| Milo |
410 g |
| Lentils |
500 g |
What is the difference between the total mass of cereals collected and the total mass of lentils collected? Give your answer in kg.
(a)
Number of packets of milo collected= 1 u
1 u = 30
Total number of packets of food items collected
= 4 u
= 4 x 30
= 120
Number of packets of rice collected
= 120 - 34 - 30 - 38
= 18
(b)
Total mass of cereals collected
= 34 x 410
= 13940 g
Total mass of lentils collected
= 38 x 500
= 19000 g
Difference between the total mass of cereals and the total mass of lentils collected
= 19000 - 13940
= 5060 g
1000 g = 1 kg
5060 g = 5060 ÷ 1000 = 5.06 kg
Answer(s): (a) 18; (b) 5.06 kg
