Question

The average marks of 10 students was calculated to be 60. Later it was found that the marks of one student was taken as 40 in place of 50. Find the correct average.

Answer 1

ANSWER is 61

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Answer 2

Answer:

61.

Step-by-step explanation:

Since, the total students from the question is 10 and the average marks of the 10 students is 60. So, the total marks is 60*10=600.

Again, we have that for one student it is found that 40 marks was taken instead of 50. So, there will be an increase of 50-40 = 10 marks in that persons result.

So, the total marks will be 600+10 which is 610. The average value of marks of the 10 students will then become 610/10 = 61.