Question

(2^2 + 4^2 + 6^2 + ... + 20^2) = ?

a.

770

b.

1155

c.

1540

d.

385 x 385

Posted under Aptitude

Answer: (c).1540

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Q. (2^2 + 4^2 + 6^2 + ... + 20^2) = ?

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