The average marks of Madhu in four subjects are 64, and she got 69 marks in the fifth subject. What is the new average of marks obtained by Madhu in 5 subjects?
average of 4 subject =64 total number in 4 subject =4×64 =256. in 5th subject marksd=69 total marks in 5 subject =256+69=325 new average of 5 subject =325/5 =65.
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