Step 1: Note down the revenues from the bar graph.
From the graph, the revenues (in ₹) are:
Company A: 63, 72, 81, 74, 75
Company B: 66, 70, 68, 72, 75
Company C: 58, 67, 75, 80, 76
Step 2: Calculate the total revenue for each company.
Total revenue of A = \( 63 + 72 + 81 + 74 + 75 = 365 \)
Total revenue of B = \( 66 + 70 + 68 + 72 + 75 = 351 \)
Total revenue of C = \( 58 + 67 + 75 + 80 + 76 = 356 \)
Step 3: Calculate the average revenue for each company.
Average revenue of A = \( \frac{365}{5} = 73 \)
Average revenue of B = \( \frac{351}{5} = 70.2 \)
Average revenue of C = \( \frac{356}{5} = 71.2 \)
Step 4: Compare the averages.
Company A has the highest average revenue among the three companies.
Step 5: Conclusion.
The company with the highest average revenue over the five years is Company A.