Given that ( 12 + 22 + 32 + .......... + 102 ) = 385, then the value of ( 22 + 42 + 62 + .......... + 202 ) is equal to = ?
A. 770
B. 1155
C. 1540
D. (385)2
Answer: Option C
Solution(By Examveda Team)
( 22 + 42 + 62 + .......... + 202 )= 22 ( 12 + 22 + 32 + .......... + 102 )
= 4 × 385
= 1540
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Comments ( 1 )
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