Question

The total marks obtained by a student in Hindi, Chemistry and Mathematics is 150 more than the marks obtained by him in Hindi. What is the average mark obtained by him in Chemistry and Mathematics?
1. 71
2. 75
3. 80
4. 99
5. None

Answer 1

Correct Answer - Option 2 : 75

Given:

Marks obtained in Hindi, Chemistry and Mathematics = 150 + marks obtained in Hindi

Formula used:

Average = Sum of observations/Number of observations

Calculation:

Let the marks obtained by the student in Hindi Chemistry, and Mathematics be H, C and M respectively

⇒ H + C + M = 150 + H

⇒ C + M = 150

Required average = (C + M)/2

⇒ 150/2

⇒ 75

∴ The average marks obtained in Chemistry and Mathematics is 75