The population per household and not the population per unit area is being talked about in the statement. So, only II follows while I does not.
3. Statements: Wind is an inexhaustible source of energy and an aerogenerator can convert it into electricity. Though not much has been done in this field, the survey shows that there is vast potential for developing wind as alternative source of energy.
Conclusions:
Energy by wind is comparatively newly emerging field.
The energy crisis can be dealt by exploring more in the field of aero-generation.
The phrase 'not much has been done in this field' indicates that wind energy is a comparatively newly emerging field. So, I follows. The expression 'there is vast potential for developing wind as alternative source of energy' proves II to be true.
The popularity of Ayurvedic or allopathic medicines in India is not being talked about in the statement. So, neither I nor II follows.
6. Statements: From the next academic year, students will have the option of dropping Mathematics and Science for their school leaving certificate examination.
Conclusions:
Students who are weak in Science and Mathematics will be admitted.
Earlier students did not have the choice of continuing their education without taking these subjects.
Since the new system gives the students the option of dropping Science and Mathematics, so students weak in these subjects can also be admitted. So, I follows. Also, it is mentioned that the new system will come into effect from the next academic year. This means that it did not exist previously. So, II also follows.
7. Statements: It is almost impossible to survive and prosper in this world without sacrificing ethics and morality.
Conclusions:
World appreciates some concepts but may not uphold it.
Concept of ethics and morality are not practicable in life.
Both I and II directly follow from the given statement.
9. Statements: My first and foremost task is to beautify this city - if city X and Y can do it - why can't we do it. - Statement of Municipal Commissioner of city Z after taking over charge.
Conclusions:
The people of city Z are not aware about the present state of ugliness of their city.
The present Commissioner has worked in city X and Y and has good experience of beautifying cities.
The Commissioner only cites examples of cities X and Y and undertakes to beautify city Z. This does not imply that he has worked in cities X and Y. So, I do not follow. Also, nothing about people's response to the state of the city can be deduced from the statement. Thus, II also does not follow.
10. Statements: A man must be wise to be a good wrangler. Good wranglers are talkative and boring.