SSC CGL 10 Jun 2019 Shift 2 Paper

Question : 74 of 100

Marks: +1, -0

The average marks of 50 students in a class was found to be

64 .

If the marks of two students wereincorrectly entered as 38 and 42 instead of 83 and 24, respectively, then what is the correct average?

Solution:

Total marks of all students

=50 \×64=3200

Corrected average

=\ {3200-38-42+83+24}/{50}

=64.54

Go to Question:

Prev Question

Next Question