The average mark of a class of thirty six students is 72. If three students whose marks are 32,28 and 34 are removed , then find the approximate average mark of the remaining students of the class.  Choose the correct choice from the following answers:
A) 71 B) 74 C) 57 D) 76 E) 80
Exp. Total mark of 36 students = 72*36= 
<gadget id="calculator">72*36</gadget>
<output>2_592</output>
2592,   Total mark after the removal of 3 students= 2592 –(32 +28+34 )   = 2592 – 94 = 2498   Approximate average mark = 2498/(36-3) = 2498/ 33 = 76   Answer: 76
<result>D</result>
The average mark of a class of thirty six students is 72. If three students whose marks are 32,28 and 34 are removed , then find the approximate average mark of the remaining students of the class.