Question

If in a class, 4 students obtained 25 marks and another 4 students obtained 35 marks, then their average score is _______.

• A. 30
• B. 27
• C. 33
• D. 35

Answer 1

The correct option is A

30

We know that,
$Average=\frac{Totalmarks}{Numbersofstudents}$

Total marks
$=4\times 25+4\times 35$
$=100+140$
$=240$

Number of students = 8

Now,
$\text{Average score}$
$=\frac{240}{8}$
$=30$

Thus, average score is 30.