2. Questions Bank
  3. 12th Class
  4. Mental Ability
  5. Non-Verbal Series

12th Class Mental Ability Non-Verbal Series Question Bank Question - Diagrammatic Puzzles

  • question_answer
    How many triangles are there in the figure?

    A) 26

    B) 25           

    C) 28

    D) 27

    Correct Answer: A

    Solution :

    Explanation: The larger triangles are: ABC and BCD i.e. - 2 triangles. The simplest triangles are: AEF, EFG, EGH, EHB, HBI, HGI, FCJ, GJK, JCK, GIK and IKD i.e. - 12 triangles. The bisected triangles are FCK, FGC, FGK, GCK, EGI, EGB, EBI, BGI i.e. -8 triangles other triangles are: EFI, EFK EKI, FIKi.e.4triangles so, the number of triangles is \[2\text{+}2+8+4=26\]


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