Aptitude and Reasoning Questions

In the following question, select the odd letter/letters from the given alternatives.

In the following question, two statements are given each followed by two conclusions I and II. You have to consider the statements to be true even if they seem to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follows from the given statements.

Statements:
(I) a R b
(II) b R a

Conclusion:
(I) This relation is symmetric.
(II) This is a relation.

Three angles of a quadrilateral are 60°,90°and 100°. Then the fourth angle of the quadrilateral is

In the following question below are given some statements followed by some conclusions. Taking the given statements to be true even if they seem to
be at variance from commonly known facts, read all the conclusions and then decide which of the given conclusion logically follows the given statements.
Statements:
I. Some pens are pencils.
II. All pencils are erasers.
Conclusions:
I. Some pencils are not pens.
II. Some erasers are not pens.

In the following question, from the given alternative words, select the word which cannot be formed using the letters of the given word.

Abandoned

Three words in bold letters are given in each question, which have something in common among themselves. Out of the four given alternatives, choose the most appropriate description about these three words.

Knight: Rook: Bishop

Ganga leaves from her college at 10:00 a.m. She starts walking towards north and covers a distance of 14 km. She turns right and walks 20 km to reach point K. She turns left and walk 16 km. She again turns left and walks 10 km. How far (in km) and in which direction is she now from point K?

Facing south, x turns 225 deg clockwise and then 90 deg anti-clock wise. What direction is x facing now?