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: A
Explanation
Pattern: (R1×R2×R3) × 10=R4
Column 1: (4×5×6) × 10 = 120×10=1200
Column 2: (7×8×5) × 10 = 280×10=1200
Same apply to column 3:
= (4×4×8) × 10
= 128×10
=1280
Hence, the correct answer is option (1).