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ASMITA MADHESIYA

· started a discussion

· 1 Months ago

58 (Question: 103693.0 )

please explain
this question

Question:
The average of all the perfect squares up to 100 is: 
Options:
A) 38.5
B) 1000
C) 100         
D) 385
E) None of these
Solution:

Knowledge Expert

· commented

· 1 Months ago

@ Asmita: In questions like this, you need to find firstly sum of fist 100 perfect square by using the formula nx(n+1)x(2n+1)/6 where n=100. Then, to find the average divide it by n=10.
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