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1. Y’s visit takes place immediately before X’s visit, and X’s visit is on 7^th March. 

 

​2. Exactly three people have their visits between X’s visit and V’s visit. 

 

3. T’s visit is in a month that has 31 days.  4. There are more than two people whose visits fall between T’s visit and S’s visit.

Here, we have 4 Cases, i.e., Case 1, Case 2, Case 3, and Case 4.

 

5. U’s visit is scheduled immediately after W’s visit. 

Now, we can eliminate Case 3, but we have a new subcase of Case 1.

 

6. Z’s visit is scheduled after S’s visit. 

Now, we can eliminate Case 1a and Case 2.

 

7. Not more than two people visit between T and Z.

Now, we can eliminate Case 1.

This is our final arrangement,

 

Hence, the correct answer is 20^th September.

1. Y’s visit takes place immediately before X’s visit, and X’s visit is on 7^th March. 

 

​2. Exactly three people have their visits between X’s visit and V’s visit. 

 

3. T’s visit is in a month that has 31 days.  4. There are more than two people whose visits fall between T’s visit and S’s visit.

Here, we have 4 Cases, i.e., Case 1, Case 2, Case 3, and Case 4.

 

5. U’s visit is scheduled immediately after W’s visit. 

Now, we can eliminate Case 3, but we have a new subcase of Case 1.

 

6. Z’s visit is scheduled after S’s visit. 

Now, we can eliminate Case 1a and Case 2.

 

7. Not more than two people visit between T and Z.

Now, we can eliminate Case 1.

This is our final arrangement,

 

Hence, the correct answer is Three.

1. Y’s visit takes place immediately before X’s visit, and X’s visit is on 7^th March. 

 

​2. Exactly three people have their visits between X’s visit and V’s visit. 

 

3. T’s visit is in a month that has 31 days.  4. There are more than two people whose visits fall between T’s visit and S’s visit.

Here, we have 4 Cases, i.e., Case 1, Case 2, Case 3, and Case 4.

 

5. U’s visit is scheduled immediately after W’s visit. 

Now, we can eliminate Case 3, but we have a new subcase of Case 1.

 

6. Z’s visit is scheduled after S’s visit. 

Now, we can eliminate Case 1a and Case 2.

 

7. Not more than two people visit between T and Z.

Now, we can eliminate Case 1.

This is our final arrangement,

 

Except for the Z who visited in the month which have 30 ays, all others visit in month having 31 days.

Hence, the correct answer is Z.

1. Y’s visit takes place immediately before X’s visit, and X’s visit is on 7^th March. 

 

​2. Exactly three people have their visits between X’s visit and V’s visit. 

 

3. T’s visit is in a month that has 31 days.  4. There are more than two people whose visits fall between T’s visit and S’s visit.

Here, we have 4 Cases, i.e., Case 1, Case 2, Case 3, and Case 4.

 

5. U’s visit is scheduled immediately after W’s visit. 

Now, we can eliminate Case 3, but we have a new subcase of Case 1.

 

6. Z’s visit is scheduled after S’s visit. 

Now, we can eliminate Case 1a and Case 2.

 

7. Not more than two people visit between T and Z.

Now, we can eliminate Case 1.

This is our final arrangement,

 

Hence, the correct answer is Five.

The least possible Venn diagram for the given statements is as follows,

Conclusions:

I. No pen is eraser → False (it is possible but not definite.)

II. Some erasers are pencil → False (as no pencil is eraser which also  means no eraser is pencil.)

III. All pen being pencils is a possibility → False (not possible as only few pens are pencils which means some pens are pencils and some pen are not pencils.)

Thus, none of the conclusions follows.

The least possible Venn diagram for the given statements is as follows,

Conclusions:

I. Some lemons are orange → False (only fruits are orange.)

II. All lemons being fruits is a possibility → True (it is possible.)

III. No lemon is orange → True (only fruits are orange.)

Thus, both conclusions II and III follow.

The least possible Venn diagram for the given statements is as follows,

Conclusions:

I. No laptop is charger → False (some charger are laptop → some laptop are charger.)

II. Some mobiles are laptop → True (as some mobile are chargers and all chargers are laptop.)

Thus, only conclusion II follows.

The least possible diagram for the given statements is as follows 

Conclusions:

I. Some clocks are sweets → True (Some part of clocks are definitely sweets) 

II. All sweets are clocks → False (It is possible but not definite)

Hence, only I follows.

1. R is positioned at one end of the row. 
2. There is only one person between R and K.

Here, we have 2 Cases, i.e., Case 1 and Case 2.

3. Exactly six persons are standing between K and J.  4. J is placed third from one of the ends. 

5. The number of individuals between M and T is the same as that between K and M. 6. There are more than six people standing between R and T.

Here, we have 4 Cases, i.e., Case 1, Case 2, Case 1a, and Case 2a.

7. P stands fifth to the right of M.

Now, we can eliminate Case 2.

8. Not more than five people stand between J and P.

Now, we can eliminate Case 2a.

9. T doesn't stand immediately left of P.

Now, we can eliminate Case 1a.

This is our final arrangement,

Hence, the correct answer is 12.

1. R is positioned at one end of the row.  2. There is only one person between R and K.

Here, we have 2 Cases, i.e., Case 1 and Case 2.

3. Exactly six persons are standing between K and J.  4. J is placed third from one of the ends. 

5. The number of individuals between M and T is the same as that between K and M. 6. There are more than six people standing between R and T.

Here, we have 4 Cases, i.e., Case 1, Case 2, Case 1a, and Case 2a.

7. P stands fifth to the right of M.

Now, we can eliminate Case 2.

8. Not more than five people stand between J and P.

Now, we can eliminate Case 2a.

9. T doesn't stand immediately left of P.

Now, we can eliminate Case 1a.

This is our final arrangement,

Hence, the correct answer is Fourth to the left.