11 : 121 : 110 :: 15 : 225 : 210 :: ?
A. 9 : 81 : 70
B. 19 : 361 : 342
C. 17 : 288 : 272
D. 16 : 225 : 239
Solution(By Examveda Team)
19 : 361 : 342 would be the correct answer and the logic is:
X : X^2 : (X^2 -X).
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19
a
option-B, 11: 11*11(121):121-11=110, and so on( second one is sq of the Ist on and third one is (III-II)
ofcource 2nd ans...
B..
19 : 361 : 342
11^2=121-11=110
15^2=225-15=210
19^2=361-19=342
hence option C
B 19^2 : 361:361-19
B