The following graph shows the demand and production of buses of five companies in 2022 (in thousands). Study the given graph carefully and answer the question that follows

The number of companies whose production of buses is equal to or more than the average demand of buses of all five companies is:

Correct option is A

Given:
The demand and production of buses of five companies in 2022
Formula Used:
​$$\text{Average} = \frac{\text{Sum of Observations}}{\text{No. of Observations}}$$​​
Solution:
Average demand of all 5 buses = $$\frac{150+145+160+165+155}{5} = 155$$​​
Clearly company C,D,E have production equal to or above 155.