In a test, the average marks of five students was found to be 48. Later it was discovered that the marks of one student was misread as 32 instead of 67. Find the correct average?
Question
In a test, the average marks of five students was found to be 48. Later it was discovered that the marks of one student was misread as 32 instead of 67. Find the correct average?
Solution
Step 1: Find the total marks of the five students as per the incorrect average. The total marks would be 5 students * 48 marks/student = 240 marks.
Step 2: Subtract the incorrectly read marks from the total. So, 240 marks - 32 marks = 208 marks.
Step 3: Add the correct marks to the total. So, 208 marks + 67 marks = 275 marks.
Step 4: Find the correct average by dividing the correct total marks by the number of students. So, 275 marks / 5 students = 55 marks/student.
So, the correct average is 55 marks.
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