The marks obtained by a student of Class XI in first and second terminal examination are 62 and 48, respectively. Find the number of minimum marks he should get in the annual examination to have an average of at least 60 marks.

Explanation

To solve the problem, we need to find the minimum marks a student should obtain in the annual examination to achieve an average of at least 60 marks across three examinations: the first terminal, the second terminal, and the annual examination.

### Step-by-Step Solution:

1. **Identify the Marks Obtained:**
- Marks in the first terminal examination = 62
- Marks in the second terminal examination = 48
- Let the marks in the annual examination be represented as \( x \).
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