The average score of Sehwag in 10 innings was 77 runs. In the `11^(th)` innings he had scored zero runs. The overall average score of Sehwag in all the 11 innings was :

Options

A. 77
B. `7.7`
C. 11
D. 70

Answer

To find the overall average score of Sehwag after 11 innings, we can follow these steps:

### Step 1: Calculate the total runs scored in the first 10 innings.
The average score of Sehwag in 10 innings is given as 77 runs. The formula for average is:

\[ \text{Average} = \frac{\text{Total Runs}}{\text{Number of Innings}} \]

From this, we can rearrange the formula to find the total runs:

\[ \text{Total Runs} = \text{Average} \times \text{Number of Innings} \]

Substituting the values:

\[ \text{Total Runs} = 77 \times 10 = 770 \text{ runs} \]

### Step 2: Add the score from the 11th inning.
In the 11th inning, Sehwag scored 0 runs. Therefore, the total runs after 11 innings will be:

\[ \text{Total Runs after 11 innings} = 770 + 0 = 770 \text{ runs} \]

### Step 3: Calculate the overall average score after 11 innings.
Now, we need to find the average score over all 11 innings. We use the average formula again:

\[ \text{Overall Average} = \frac{\text{Total Runs after 11 innings}}{\text{Number of Innings}} \]

Substituting the values:

\[ \text{Overall Average} = \frac{770}{11} \]

Calculating this gives:

\[ \text{Overall Average} = 70 \text{ runs} \]

### Final Answer:
The overall average score of Sehwag in all 11 innings is **70 runs**.

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