Verbal Reasoning - Logical Deduction Questions

An assertion (A) and a reason (R) are given below.

Assertion (A) : Tungsten filament is used for making light bulbs.

Reason (R) : Tungsten has a high melting point.

Choose the correct option.

Read the statements and select a conclusion from the given alternatives.

Statements :

All pens are pencils. Some pencils are erasers. Some erasers are ropes. All ropes are tents.

Conclusions :

I. Some tents are trams
II. Some ropes are pens
III. Some erasers are pens
IV. Some pencils are pens

According to the National Agricultural Aviation Society (NAAS), without the use of crop protection products to control insects, weeds, and diseases, crop yields per acre will drop by more than 50 percent. The first aerial appligreion of insecticide occurred in 1921, and it was a huge success. By contrast, in today's economy all aircraft that are classified as aerial appligreors do more than just apply insecticide; today, they also spread seed and apply fertilizer. 

From the information given above it CANNOT be validly concluded that

Read the following information and answer the following questions below.

In a class of 90 students, 80 students like burger or pizza.
62 like burger and 56 like pizza.

How many like neither burger nor pizza?

Lycopene, glutathione, and glutamine are powerful antioxidants that neutralize the free radicals that are produced in the body as a result of routine bodily processes. An excess of these free radicals in your system causes rapid aging because they accelerate the rate of cellular damage. Aging is simply the result of this damage. Thus, to slow down aging it is necessary to supplement your diet with these antioxidants on a daily basis. 

Which of the following, if true, most seriously undermines the author's contention?

Read the statement and select a conclusion from the given alternatives.

Statement :

The Official Secret Act (OSA) enacted by the 'ABC' Government in the year 1930 seems to be one of the major sources of corruption in the country 'X'.

Conclusions :

I. The Official Secret Act has to be abolished immediately to put an end to the corruption in the country 'X'.

II. The 'ABC' Government had an intention of encouraging corruption in the Government offices.

The Highway police authority put up large boards at regular intervals indicating the speed limit and dangers of over-speeding on the highways.

Assumptions: 

I. Most of the motorists may drive their vehicles within the speed limit on the highways.

II. Motorists generally ignore such cautions and over-speed on the highways.

Decide which of the conclusions logically follows from the information given in the statement.

Statements
Poverty is increasing because politicians don't understand poverty nor do they know anything about the problems faced by the poor.

Conclusions:
1. All politicians should be replaced.
2. All politicians should be asked to live in poor conditions.