Dev obtained 76, 65, 82, 67 and 85 marks (out in 100) in English, Mathematics, Physics, Chemistry and Biology. What are his average marks?

Answer

To find the average marks obtained by Dev in English, Mathematics, Physics, Chemistry, and Biology, we can follow these steps:

### Step-by-Step Solution:

1. **List the Marks**:
Dev's marks in each subject are:
- English: 76
- Mathematics: 65
- Physics: 82
- Chemistry: 67
- Biology: 85

2. **Sum the Marks**:
We need to calculate the total marks obtained by adding all the individual marks together.
\[ \text{Total Marks} = 76 + 65 + 82 + 67 + 85 \]

3. **Perform the Addition**:
Let's calculate the sum step by step:
- \(76 + 65 = 141\)
- \(141 + 82 = 223\)
- \(223 + 67 = 290\)
- \(290 + 85 = 375\)

So, the total marks obtained by Dev is 375.

4. **Count the Subjects**:
Dev has taken 5 subjects (English, Mathematics, Physics, Chemistry, and Biology).

5. **Calculate the Average**:
The average marks are calculated by dividing the total marks by the number of subjects.
\[ \text{Average Marks} = \frac{\text{Total Marks}}{\text{Number of Subjects}} = \frac{375}{5} \]

6. **Perform the Division**:
\[ \frac{375}{5} = 75 \]

7. **Final Answer**:
Therefore, Dev's average marks are 75.

### Summary:
Dev's average marks in the subjects are **75**.

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