Three students A, B, and C gets 215, 105, and 202 marks in an exam respectively. Find the average marks of A, B, and C.

Options

A. 134
B. 174
C. 184
D. 164

Answer

To find the average marks of students A, B, and C, we can follow these steps:

### Step 1: Identify the marks obtained by each student.
- Student A has scored 215 marks.
- Student B has scored 105 marks.
- Student C has scored 202 marks.

### Step 2: Calculate the total marks obtained by all three students.
To find the total marks, we add the marks of each student:
\[ \text{Total Marks} = \text{Marks of A} + \text{Marks of B} + \text{Marks of C} \]
\[ \text{Total Marks} = 215 + 105 + 202 \]

### Step 3: Perform the addition.
Calculating the total:
\[ 215 + 105 = 320 \]
\[ 320 + 202 = 522 \]
So, the total marks obtained by A, B, and C is 522.

### Step 4: Determine the number of students.
There are 3 students (A, B, and C).

### Step 5: Use the average formula.
The formula for average is:
\[ \text{Average} = \frac{\text{Sum of Terms}}{\text{Number of Terms}} \]
Substituting the values we found:
\[ \text{Average} = \frac{522}{3} \]

### Step 6: Perform the division.
Calculating the average:
\[ 522 \div 3 = 174 \]

### Conclusion:
The average marks of students A, B, and C is 174.

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