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 pasta. How many packets of tea were collected?
- The table shows the mass of each packet of food.
Food Items |
Mass of each packet |
Flour |
10 kg |
Pasta |
355 g |
Oats |
340 g |
Tea |
500 g |
What is the difference between the total mass of oats collected and the total mass of flour collected? Give your answer in kg.
(a)
Number of packets of pasta collected = 1 u
1 u = 28
Total number of packets of food items collected
= 4 u
= 4 x 28
= 112
Number of packets of tea collected
= 112 - 28 - 28 - 36
= 20
(b)
1 kg = 1000 g
10 kg = 10 x 1000 = 10000
Total mass of flour collected
= 28 x 10000
= 280000 g
Total mass of oats collected
= 36 x 340
= 12240 g
Difference between the total mass of oats and the total mass of flour collected
= 280000 - 12240
= 267760 g
1000 g = 1 kg
267760 g = 267760 ÷ 1000 = 267.76 kg
Answer(s): (a) 20; (b) 267.76 kg