Question

If each student of a class of 10 students was given 5 marks more in an exam, the mean marks ______.

Options

• increase by 5

• increase by 10

• remain same

• decrease by 5

Answer 1

If each student of a class of 10 students was given 5 marks more in an exam, the mean marks increase by 5.

Explanation:

If each student of a class of 10 students was given 5 marks more then,

Total increase in marks = 10 × 5 = 50 Marks

Mean = `50/10`

= 5