In the following question, select the number which can be placed at the sign of question mark (?) from the given alternatives.

Show answer & explanation
Correct answer: C
Explanation
Pattern: (R1×R2×R3) × 10=R4
Column 1: (10×2×7) ×10=140×10=1400
Column 2: (5×7×8) ×10 = 280 ×10 = 2800
Apply same to Column 3:
= (9×6×5) ×10
= 270 × 10
= 2700
Hence, the correct answer is option (3).