Eight boxes namely H to O are placed in a rack one above the other.

1. Three boxes are between the box O and the box M but the box O is above the box M.

Here we have four cases according to this Condition.

2. Box L is immediate above the box N but below the box M.

(Case III and Case IV not follows because in the question given box L and box N are below the box M but it is not possible in these cases) 

Case I Splits into one more case i.e. Case I(a)

3. Four boxes are between the box L and the box J.

(Case I(a) and Case II not follows because in the question given Four boxes are between the box L and the box J but it is not possible in these cases)

4. Box K is above the box M and below the box J.

Again case I Splits into two more cases i.e. Case I and Case II 

5. Box I is below the box K and above the box L.

Again case II Splits into one more case i.e. case II(a)

6. Two boxes are between the box I and the box H.

(Case II and Case II(a) not follows because in the question given Two boxes are between the box I and the box H but it is not possible in these cases)

Hence, Three boxes are between the box I and the box J.

Eight boxes namely H to O are placed in a rack one above the other.

1. Three boxes are between the box O and the box M but the box O is above the box M.

Here we have four cases according to this Condition.

2. Box L is immediate above the box N but below the box M.

(Case III and Case IV not follows because in the question given box L and box N are below the box M but it is not possible in these cases) 

Case I Splits into one more case i.e. Case I(a)

3. Four boxes are between the box L and the box J.

(Case I(a) and Case II not follows because in the question given Four boxes are between the box L and the box J but it is not possible in these cases)

4. Box K is above the box M and below the box J.

Again case I Splits into two more cases i.e. Case I and Case II 

5. Box I is below the box K and above the box L.

Again case II Splits into one more case i.e. case II(a)

6. Two boxes are between the box I and the box H.

(Case II and Case II(a) not follows because in the question given Two boxes are between the box I and the box H but it is not possible in these cases)

Hence, six boxes are above the box L.

Eight boxes namely H to O are placed in a rack one above the other.

1. Three boxes are between the box O and the box M but the box O is above the box M.

Here we have four cases according to this Condition.

2. Box L is immediate above the box N but below the box M.

(Case III and Case IV not follows because in the question given box L and box N are below the box M but it is not possible in these cases) 

Case I Splits into one more case i.e. Case I(a)

3. Four boxes are between the box L and the box J.

(Case I(a) and Case II not follows because in the question given Four boxes are between the box L and the box J but it is not possible in these cases)

4. Box K is above the box M and below the box J.

Again case I Splits into two more cases i.e. Case I and Case II 

5. Box I is below the box K and above the box L.

Again case II Splits into one more case i.e. case II(a)

6. Two boxes are between the box I and the box H.

(Case II and Case II(a) not follows because in the question given Two boxes are between the box I and the box H but it is not possible in these cases)

Hence, seven boxes are below the box O.

Eight boxes namely H to O are placed in a rack one above the other.

1. Three boxes are between the box O and the box M but the box O is above the box M.

Here we have four cases according to this Condition.

2. Box L is immediate above the box N but below the box M.

(Case III and Case IV not follows because in the question given box L and box N are below the box M but it is not possible in these cases) 

Case I Splits into one more case i.e. Case I(a)

3. Four boxes are between the box L and the box J.

(Case I(a) and Case II not follows because in the question given Four boxes are between the box L and the box J but it is not possible in these cases)

4. Box K is above the box M and below the box J.

Again case I Splits into two more cases i.e. Case I and Case II 

5. Box I is below the box K and above the box L.

Again case II Splits into one more case i.e. case II(a)

6. Two boxes are between the box I and the box H.

(Case II and Case II(a) not follows because in the question given Two boxes are between the box I and the box H but it is not possible in these cases)

Here

1. Box O and Box J - Box O is above the Box J

2. Box K and Box M - Box K is above the Box M

3. Box I and Box L - Box I is above the Box L

4. Box H and Box K - Box H is above the Box K

5. Box N and Box L - Box N is below the Box L(so it does not belong to the group)

Hence, Box N and Box L does not belong to the group.

1) Neha secured marks more than only two students.

Total number of students  we have is six. Since Neha scored more than only two students, it means two students scored less than Neha.

If two students scored less than Neha than there are three students who scores more than Neha. 

_____ > _____ > ______ > Neha >  _____ > _____

2)Sita has secured fewer than only Ram. Since Sita scored fewer than only Ram, it means she scores more than four students, and she is the second higest scorer.

Ram > Sita > ______ > Neha >  _____ > _____

3)Rupa got marks more than Pihu. Nitu has not secured the lowest marks and Nitu scores more than Neha.

If Nitu scores more than Neha than Neha is the third higest scorer. Now since Rupa scores more than Pihu then Pihu is the lowest scorer and rupa is the second lowest scorer. After combining all these informations we gets;

Ram > Sita > Nitu > Neha > Rupa > Pihu

Hence Pihu secured the lowest marks.

1) Neha secured marks more than only two students.

Total number of students  we have is six. Since Neha scored more than only two students, it means two students scored less than Neha.

If two students scored less than Neha than there are three students who scores more than Neha. 

_____ > _____ > ______ > Neha >  _____ > _____

2) Sita has secured fewer than only Ram. Since Sita scored fewer than only Ram, it means she scores more than four students, and she is the second higest scorer.

Ram > Sita > ______ > Neha >  _____ > _____

3) Rupa got marks more than Pihu. Nitu has not secured the lowest marks and Nitu scores more than Neha.

If Nitu scores more than Neha than Neha is the third higest scorer. Now since Rupa scores more than Pihu then Pihu is the lowest scorer and rupa is the second lowest scorer. After combining all these informations we gets;

Ram > Sita > Nitu > Neha > Rupa > Pihu

Hence Rupa scored the second lowest marks.

1) Neha secured marks more than only two students.

Total number of students  we have is six. Since Neha scored more than only two students, it means two students scored less than Neha.

If two students scored less than Neha than there are three students who scores more than Neha. 

_____ > _____ > ______ > Neha >  _____ > _____

2) Sita has secured fewer than only Ram. Since Sita scored fewer than only Ram, it means she scores more than four students, and she is the second highest scorer.

Ram > Sita > ______ > Neha >  _____ > _____

3) Rupa got marks more than Pihu. Nitu has not secured the lowest marks and Nitu scores more than Neha.

If Nitu scores more than Neha than Neha is the third higest scorer. Now since Rupa scores more than Pihu then Pihu is the lowest scorer and rupa is the second lowest scorer. After combining all these informations we gets;

Ram > Sita > Nitu > Neha > Rupa > Pihu

Hence, two students scores more than Nitu.

Eight People - Shalu, Annu, Neha, Komal, Preeti, Gunjan, Chinu and Radha. All are facing inside.

1) Only 1 person sit between Radha and Preeti.

2) Neha is immediate left of Preeti.

3) Only one person sit between Radha and Chinu.

4) Gunjan is immediate left of Chinu.

5) Chinu is 3^rd to the right of Komal.

6) Annu is immediate right of Chinu and immediate left of Radha. 

( Case II is eliminated because Komal is sitting immediate left of Radha)

7) There is only one place left so Shalu is sitting Between Komal and Gunjan.

Final Solution:

Hence, Annu is 3rd to the Right of Shalu.

From the given information

Hence there are five pairs in the word ‘ CELLPHONES ’.

Eight People - Shalu, Annu, Neha, Komal, Preeti, Gunjan, Chinu and Radha. All are facing inside.

1) Only 1 person sit between Radha and Preeti.

2) Neha is immediate left of Preeti.

3) Only one person sit between Radha and Chinu.

4) Gunjan is immediate left of Chinu.

5) Chinu is 3^rd to the right of Komal.

6) Annu is immediate right of Chinu and immediate left of Radha. 

( Case II is eliminated because Komal is sitting immediate left of Radha)

7) There is only one place left so Shalu is sitting Between Komal and Gunjan.

Final Solution:

Hence, 3 persons are sitting between Annu and Komal.