Suppose that a, b > 0. If the equation x² + ax + b = 0

Four numbers have been given, out of which three are alike in a certain way and one is different. Select the one that is different.

Select the letter cluster which does not belong to the same group from the given alternatives.

Select the set in which the numbers are related in the same way as are the numbers of the given set.

14, 196, 2744

Find the odd one out from the following options. 

Select the set of numbers that is not similar to the following set.

(14, 48, 72)

Five letter-clusters have been given out of which four are alike in some manner and one is different. Select the one that is different.

Three of the following four number-clusters are alike in a certain way and thus form a group. Which is the one that does not belong to that group?

Four numbers have been given out of which three are alike in some manner, while one is different. Choose the odd one.

Select the odd letters from the given alternatives?