Select the number from among the given options that can replace the question mark (?) in the following series.
9, 45, 225, 1125, 5625, ?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 28125.
Given series: 9, 45, 225, 1125, 5625, ?
9 × 5 = 45, 45 × 5 = 225, 225 × 5 = 1125, 1125 × 5 = 5625, 5625 × 5 = 28125