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: B
Explanation
Column 1
4 × 5 × 3 = 60
60 × 10 = 600
Column 2
2 × 6 × 4 = 48
48 × 10 = 480
Column 3
7 × 3 × 2 = 42
42 × 10 = 420