Question

The mean weight of 21 students is 21 kg. If a student weighing 21kg is removed from the group, then the mean of the remaining students is

Answer 1

Answer:

21

Step-by-step explanation:

Mean = 21

Numbers are 11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31

21 is removed

left numbers are 11,12,13,14,15,16,17,18,19,20,22,23,24,25,26,27,28,29,30,31

mean is 21

Answer 2

Answer:  

21  

Step-by-step explanation:  

Mean = 21  

Numbers are 11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31  

21 is removed  

left numbers are 11,12,13,14,15,16,17,18,19,20,22,23,24,25,26,27,28,29,30,31  

mean is 21

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