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Nishant

· started a discussion

· 1 Months ago

Misprint in question (Question: 103693.0 )

I think there is a mis print since question asks about average of sum of square upto 100
but in solution average of sum of squares upto 10 is given
This is pathetic , didnt expected this such a website of such great repute.

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:

Talented Boy

· commented

· 1 Months ago

@Nishant did u get now?

See: average has been asked bro...not only summation...........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.

Nishant

· commented

· 1 Months ago

I am sorry could not catch up with the language here
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