In how many years, the revenue of the firm is less than the average revenue for these 8 years?

Options

A. 3
B. 4
C. 5
D. 6

Answer

To solve the problem, we need to determine how many years the revenue of a firm is less than the average revenue over a period of 8 years. Here’s a step-by-step solution:

### Step 1: Gather Revenue Data
From the bar graph, we extract the revenue for each year:
- 2009: 300 crores
- 2010: 260 crores
- 2011: 350 crores
- 2012: 320 crores
- 2013: 250 crores
- 2014: 340 crores
- 2015: 240 crores
- 2016: 280 crores

### Step 2: Calculate Total Revenue
Next, we sum the revenue figures for all 8 years:
\[ \text{Total Revenue} = 300 + 260 + 350 + 320 + 250 + 340 + 240 + 280 \]
Calculating this gives:
\[ \text{Total Revenue} = 2340 \text{ crores} \]

### Step 3: Calculate Average Revenue
Now, we calculate the average revenue by dividing the total revenue by the number of years (8):
\[ \text{Average Revenue} = \frac{\text{Total Revenue}}{8} = \frac{2340}{8} = 292.5 \text{ crores} \]

### Step 4: Compare Each Year’s Revenue to Average
We now compare each year’s revenue to the average revenue of 292.5 crores:
- 2009: 300 crores (greater)
- 2010: 260 crores (less)
- 2011: 350 crores (greater)
- 2012: 320 crores (greater)
- 2013: 250 crores (less)
- 2014: 340 crores (greater)
- 2015: 240 crores (less)
- 2016: 280 crores (less)

### Step 5: Count Years with Revenue Less Than Average
From the comparisons:
- Years with revenue less than 292.5 crores: 2010, 2013, 2015, and 2016.

Counting these, we find:
- Total years with revenue less than average = 4 years.

### Final Answer
The revenue of the firm is less than the average revenue for **4 years**.

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