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
Answer & explanation
Correct answer: option 4
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