Which number will replace the question mark (?) in the following series? 2430, ?, 270, 90, 30, 10A810B930C800D540Answer: A. 810 Read Explanation: 2430 ÷ 3 = 810 810 ÷ 3 = 270 270 ÷ 3 = 90 90 ÷ 3 = 30 30 ÷ 3 = 10Read more in App