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 dried nuts. How many packets of rice were collected?
- The table shows the mass of each packet of food.
| Food Items |
Mass of each packet |
| Rice |
3 kg |
| Dried Fruits |
270 g |
| Dried Nuts |
305 g |
| Cereals |
500 g |
What is the difference between the total mass of dried fruits collected and the total mass of cereals collected? Give your answer in kg.
(a)
Number of packets of dried nuts collected= 1 u
1 u = 28
Total number of packets of food items collected
= 4 u
= 4 x 28
= 112
Number of packets of rice collected
= 112 - 28 - 28 - 40
= 16
(b)
Total mass of dried fruits collected
= 28 x 270
= 7560 g
Total mass of cereals collected
= 40 x 500
= 20000 g
Difference between the total mass of dried fruits and the total mass of cereals collected
= 20000 - 7560
= 12440 g
1000 g = 1 kg
12440 g = 12440 ÷ 1000 = 12.44 kg
Answer(s): (a) 16; (b) 12.44 kg
