Question : Directions: Which of the following numbers will replace the question mark (?) and complete the given number series?
15, 19, 21, 25, 27, ?

Question : Directions: Which of the following numbers will replace the question mark (?) and complete the given number series?
600, 590, 575, 550, 510, ?

Question : Directions: Which of the following numbers will replace the question mark (?) and complete the given number series?
48, 50, 54, 66, 114, ?

Question : Directions: Which of the following numbers will replace the question mark (?) in the given series?
115, 130, 122, 137, 129, ?

Question : Directions: Select the number from among the given options that can replace the question mark (?) in the following series.
144, 171, 200, ?, 264