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The pattern followed here is: Logic: First number x 10 = Second number & Second number × 20 = Third number. (3 - 30 - 600) → 3 × 10 = 30 & 30 x 20 = 600 (Correct) (5 - 50 - 2200) → 5 × 10 = 50 & 50 × 20 = 1000 (not equal to 1500) (Incorrect) (8 - 80 - 1600) →8 × 10 = 80 & 80 x 20 = 1600 (Correct) (9 - 90 - 1800) → 9 × 10 = 90 & 90 × 20 = 1800 (Correct) Hence, the correct answer is (B).
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