R

Ritu Singhal • 4.36K Points
Extraordinary Reasoning 

Q. In this pyramid number if: 11 22 31 : 12 21 32 :: 9 12 21 : ?

  • (A) 2 7 14
  • (B) 8 13 20
  • (C) 6 15 18
  • (D) 10 23 30
Correct Answer - Option(B)
Explanation by: Ritu Singhal 
If we see diagonally we will get 11 22 31 and the next diagonal series is 12 21 32. Similarly the next diagonal series after 9 12 21 is 8 13 20.

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