Determine the probability that when a hand of 7 cards is

Study the given pattern carefully and select the number that can replace the question mark (?) in it.

 First row: 84, 42, 49

Find the missing number.

Study the given pattern carefully and select the number that can replace the question mark (?) in it.

Select the number which can be placed in the column of question mark sign.

M/14 : O/12 : : U/6 : ?

What will come in the place of question mark?

Select the number from the given option that can replace the question mark [?] in the following series.

515, 517, 520, 525, 532, 543, 556, ?

In the following expression find the missing term:

Choose the correct alternative from the given ones that will complete the series.

3.5 , ?,  8.3, 10.7, 13.1 , 15.5