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212 +222 +232 +…………………302 = ?
  • a)
    5640
  • b)
    9455
  • c)
    6585
  • d)
    2870
  • e)
    None of these
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
212 +222 +232 +………………&hellip...
12 +22 +32 +…………………n2 = 1/6[n(n+1)(2n+1)]
= 30*31*61/6 – 20*21*41/6
= 9455 – 2870 = 6585
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Most Upvoted Answer
212 +222 +232 +………………&hellip...
The next number in the sequence would be 242.

To find this answer, you need to recognize that the sequence is increasing by 10 each time. So, you just add 10 to the last number (232 + 10 = 242) to get the next number in the sequence.
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212 +222 +232 +…………………302 = ?a)5640b)9455c)6585d)2870e)None of theseCorrect answer is option 'C'. Can you explain this answer?
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