Question

If the average of mark obtain by 10 student in math mathematics is 40. if two students having 46 marks each are joined the group,find the mean mark of the 12 student

Answer 1

Answer:

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Answer 2

Answer:

Mean marks of 12 students =41

Step-by-step explanation:

Mean marks of ten students = 40

Let total marks be x, then

=>x/10=40

=>x=400

New no. Of students = 12

New total marks = 400 + 46 + 46=492

So, new mean = 492/12

=41

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