71st BPSC Prelims (2025), question 9

🧮 Mental Ability

  1. Find the missing number: rows [28,20,7], [84,?,12], [45,25,9].

    1. 30
    2. 35
    3. 20
    4. 25
    Show answer

    Answer: B — 35

    Following the matrix relationship (row-wise products/ratios), the missing number is 35.

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