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Select the option that is related to the fourth term in the same way as the first term is related to the second term. 16 : 272 :: ? : 380 |
17 23 21 19 |
19 |
Pattern followed is : X : X + X2 16 : 272 16 : 16+ 162 16 : 16 + 256 16 : 272 Similarly , ? : 380 X : X + X2 Now , X + X2 = 380 X2 + X - 380= 0 X2 +20X - 19X - 380= 0 On solving X = 19 Ans = 19 |
