Logical Reasoning - Statement and Assumption

In each question below is given a statement followed by two assumptions numbered I and II. You have to consider the statement and the following assumptions and decide which of the assumptions is implicit in the statement.

Give answer

  • (A) If only assumption I is implicit
  • (B) If only assumption II is implicit
  • (C) If either I or II is implicit
  • (D) If neither I nor II is implicit
  • (E) If both I and II are implicit.

21. 

Statement: Why don't you invite Anthony for the Christmas party this year?

Assumptions:

  1. Anthony is not from the same city.
  2. Unless invited Anthony will not attend the party.

A. Only assumption I is implicit
B. Only assumption II is implicit
C. Either I or II is implicit
D. Neither I nor II is implicit
E. Both I and II are implicit

Answer: Option B

Explanation:

Anthony's place of living is not mentioned in the statement. So, I is not implicit. Assumption II follows from the statement and so it is implicit.

22. 

Statement: Sachin wrote to his brother at Bangalore to collect personally the application form from the University for the Post-graduation Course in Mathematics.

Assumptions:

  1. The University may issue application forms to a person other than the prospective student.
  2. Sachin's brother may receive the letter well before the last date of collecting application forms.

A. Only assumption I is implicit
B. Only assumption II is implicit
C. Either I or II is implicit
D. Neither I nor II is implicit
E. Both I and II are implicit

Answer: Option E

Explanation:

Since Sachin has asked his brother to collect the form, it is evident that the university may issue the form to anybody and that Sachin's brother would receive the letter before the last date of collecting the forms. So, both I and II are implicit.

23. 

Statement: "Apply nets on windows to prevent the entrance of mosquitoes in the house."

Assumptions:

  1. The entering of mosquitoes from entrances other than windows is desirable.
  2. Nets are not available to apply on doors.

A. Only assumption I is implicit
B. Only assumption II is implicit
C. Either I or II is implicit
D. Neither I nor II is implicit
E. Both I and II are implicit

Answer: Option D

Explanation:

The statement talks of a way to keep mosquitoes away. This means that entry of mosquitoes in the house is not desirable. So, I is not implicit. Besides, the statement advises using nets on windows. So, nothing about the use of nets on doors, can be deduced. Thus, II is also not implicit.

24. 

Statement: Among all the articles, the prices of personal computers show the highest decline from June 2005 to December 2005.

Assumptions:

  1. Comparative prices of all the articles in June and December 2005 were available.
  2. Prices of personal computers were higher in the first six months than the last six months of 2005.

A. Only assumption I is implicit
B. Only assumption II is implicit
C. Either I or II is implicit
D. Neither I nor II is implicit
E. Both I and II are implicit

Answer: Option E

Explanation:

Since prices of personal computers show the highest decline among all the articles, it implies that the comparative prices of all the articles was known. So, I is implicit. Also, it being given that prices of computers showed decline during the last six months, it means that they were higher in the first six months. So, II is implicit.

25. 

Statement: Most people who stop smoking gain weight.

Assumptions:

  1. If one stops smoking, one will gain weight.
  2. If one does not stop smoking, one will not gain weight.

A. Only assumption I is implicit
B. Only assumption II is implicit
C. Either I or II is implicit
D. Neither I nor II is implicit
E. Both I and II are implicit

Answer: Option D

Explanation:

The statement talks of most people' and not 'all'. So, I is not necessarily true. Thus, I is not implicit. The condition, if one does not stop smoking, cannot be deduced from the statement. So, II is also not implicit.