Which of the f ollowing numbers will replace the question mark (?) in the given series?
 15, 27, 12, ?, 9, 33

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.

5, 6, 9, 15, ____?, 40

Identify the number that does NOT belong to the following series. 

49, 98, 196, 394, 784, 1568

Which of the following numbers will replace the question mark (?) in the given series?
 10, 20 , 23, ?, 97, 582

Which of the following numbers will replace the question mark (?) in the given number series?
 458, 462, 446, 482, ?, 518

Direction: What value will come in place of the question mark (?) in the following question?

2.4, 3.6, 5.1, 6.9, ?, 11.4

Select the numbers that will replace the question marks (?) in the given number series.
 11, 12, 13, 13, 17, 16, 23, ?, ?

Direction: What value will come in place of the question mark (?) in the following question?

8, 17, 53, ?, 1079, 6479