What will come in place of ‘?’ in the following number series?
5, 45, 315, 1575, ?, 4725In this series, consecutive odd numbers starting from 9 in decreasing order are multiplied.
⇒ 5 × 9 = 45,
⇒ 45 × 7 = 315,
⇒ 315 × 5 = 1575,
⇒ 1575 × 3 = 4725 = ?
⇒ 4725 × 1 = 4725,
∴ ? = 47253. Find the wrong term in the series : 12, 21, 30, 42, 56?
5. Find the missing term in the series. 164, 201, 220, 261, 284, ?
6. Directions: What is the next number in the given number series? 2880, 480, 96, 24, ?
7. What will come in place of question mark '?' in the following question? 12, 33, 96, ?, 852
8. What will come in place of '?' in the following number series? 155, 258, 399, ?, 819, 1110
10. What will come in place of the question mark in the following number series? 2, 5, 16, 81, 568, ?