A group of 210 students appeared in some test :

A group of 210 students appeared in some test. The mean of 1/3rd of students is found to be 60. The mean of the remaining students is found to be 78. The mean of the whole group will be:

  1. 80
  2. 76
  3. 74
  4. 72
Anurag Mishra Professor Asked on 30th December 2015 in Maths.
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Answer:  (4) 72 

Anurag Mishra Professor Answered on 30th December 2015.
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