SATHEE: Sequence And Series Question 159

Sequence And Series Question 159

Question: $ 11^{2}+12^{2}+13^{2}+{{…….20}^{2}}= $

[MP PET 1995]

Options:

A) 2481

B) 2483

C) 2485

D) 2487

Show Answer

Answer:

Correct Answer: C

Solution:

Required sum $ \Sigma {{(20)}^{2}}-\Sigma {{(10)}^{2}}=2870-385=2485 $ .

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Sequence And Series Question 159

Question: $ 11^{2}+12^{2}+13^{2}+{{…….20}^{2}}= $

Options:

Answer:

Solution:

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