The below bar graph shows the number of each kind of item Deepti recycled last week.
How many more steel cans than aluminium cans did Deepti recycle?
16
Height of bars in the bar graph represents number of items recycled.
From the bar graph, it can be observed that the number of steel cans recycled by Deepti = 20
The number of aluminium cans recycled by Deepti = 4
Difference = 20 - 4 = 16
So, Deepti recycled 16 more steel cans than aluminium cans.