how can one unit sometimes be 1500 things - Maths - Data Handling

Question

how can one unit sometimes be 1500 things?

Lalit Mehra · Accepted Answer

In order to represent the given information with the help of a
bar graph, the scale to represent money earned on the
y-axis is taken as
1 unit length = Rs1500
Amount on money earned in January = Rs 9000
This is represent by a bar of length 6 units on the bar graph
(Rs 9000 = 6 Ã— Rs1500 = 6 units)
Similarly, the other amounts can be represented by bars of
corresponding lengths