Question

Which number will replace the question mark (?) in the following series? 2430, ?, 270, 90, 30, 10

• A. 810
• B. 930
• C. 800
• D. 540

Answer 1

Answer:

A. 810

2430 ÷ 3 = 810 810 ÷ 3 = 270 270 ÷ 3 = 90 90 ÷ 3 = 30 30 ÷ 3 = 10