Q.

21 : 440 : : 18 : ______             

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Start JEE / NEET / Foundation preparation at rupees 99/day !!

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!
An Intiative by Sri Chaitanya

a

323

b

331

c

343

d

317

answer is C.

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Detailed Solution

n to n2 - 1

So, the answer 182 - 1 = 323

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