Which of the following gases is used in cigarette lighter? 

(DIRECTIONS 12): In the following questions, you have brief passages. Read the passages carefully and choose the best answer to each question out of the four alternatives.
Deriving your authority from the government , your position would secure the respect and consideration of everyone, especially in a service where official rank carries so much weight. This would secure you every attention and comfort on your way and there, together with a complete submission to your olders. I know these things are a matter of indifference to you expect so far as they may further, the great objects you have in view, but they are of important in themselves, and of every importance to  those who have a right to take interest in your personal position and comfort.
Official secure position and carries responsibility from?

Anoop sells a book to Mayank at a profit of 20% and Mayank sells this book to Siddharth at a profit of 25%. Now Siddharth sells this book at a loss of 10% to Shishir. At what percentage loss should Shishir sells this book now so that his SP becomes equal to Anoop’s CP?

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:
All gases are solids.
All Solids are liquids.
Conclusions:
I. All gases are liquids.
II. At least some liquids are solids.
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.

Ticket for an adult is Rs 1600 and a child is Rs. 600.  1 child goes free with two adults. If a group has 17 adults and 7 children what is the discount the group gets?