Select the combination of letters that when sequentially placed in the gaps of the given letters series will complete the series.
b_bab_bc_abbb_ba_b

In this question relationships between different elements are shown in the statements. These statements are followed by two conclusions.
Statements R ≥ S ≥ T ˃U˃X
                   T˂V˂W
Conclusions I. R˃X
                    II.X˂W

If Friday falls on 15th of September 2000, what will be the day of 15th of September 2001? 

which of the following meanings of the arithmetical signs will yield the value ' zero ' for the expression given below?
200x100 + 300 x 200 10÷2 + 40

Identify the figure that completes the pattern.

If 5=10, 6=18, 7=28 then 8=?

Directions: In each question below are two/three statements followed by two conclusions numbered I and II. You have to take the given statements to be true even if they seem to be at variance from commonly known facts and then decide which of the given conclusions logically follow (s) from the statements disregarding commonly known facts.
Statements:
Some notes are coins.
No coin is a card.
Conclusions:
I. All cards can be notes.
II. Some notes are neither coins nor cards.
Give Answer
(A) if only conclusion I follows.
(B) if only conclusion II follows.
(C) if either conclusion I or conclusion II follows.
(D) if neither conclusion I nor conclusion II follows.
(E) if both conclusion I and conclusion II follows.

7 : 30 :: 17 : ?