The bar graph shows the number of packets of different food collected in a donation drive.
- 15 of the total number of packets of food collected was tea. How many packets of flour were collected?
- The table shows the mass of each packet of food.
Food Items |
Mass of each packet |
Flour |
10 kg |
Cereals |
370 g |
Tea |
485 g |
Noodles |
500 g |
What is the difference between the total mass of cereals collected and the total mass of noodles collected? Give your answer in kg.
(a)
Number of packets of tea collected= 1 u
1 u = 22
Total number of packets of food items collected
= 5 u
= 5 x 22
= 110
Number of packets of flour collected
= 110 - 32 - 22 - 40
= 16
(b)
Total mass of cereals collected
= 32 x 370
= 11840 g
Total mass of noodles collected
= 40 x 500
= 20000 g
Difference between the total mass of cereals and the total mass of noodles collected
= 20000 - 11840
= 8160 g
1000 g = 1 kg
8160 g = 8160 ÷ 1000 = 8.16 kg
Answer(s): (a) 16; (b) 8.16 kg