The bar graph shows the number of packets of different food collected in a donation drive.
- 16 of the total number of packets of food collected was biscuits. How many packets of flour were collected?
- The table shows the mass of each packet of food.
Food Items |
Mass of each packet |
Flour |
9 kg |
Lentils |
320 g |
Biscuits |
495 g |
Tea |
500 g |
What is the difference between the total mass of lentils collected and the total mass of tea collected? Give your answer in kg.
(a)
Number of packets of biscuits collected= 1 u
1 u = 16
Total number of packets of food items collected
= 6 u
= 6 x 16
= 96
Number of packets of flour collected
= 96 - 24 - 16 - 36
= 20
(b)
Total mass of lentils collected
= 24 x 320
= 7680 g
Total mass of tea collected
= 36 x 500
= 18000 g
Difference between the total mass of lentils and the total mass of tea collected
= 18000 - 7680
= 10320 g
1000 g = 1 kg
10320 g = 10320 ÷ 1000 = 10.32 kg
Answer(s): (a) 20; (b) 10.32 kg