Order and Ranking: Exercise-3

1. In a class of 70 students, a girl is ranked 33rd. When 5 new students joined the class, her rank dropped by four. What is her new rank from the end?

1. 39th
2. 36th
3. 34th
4. 32nd

Answer: (a) 39th

Solution: Total number of students after five new students joined = 75

Since, the rank of the girl dropped by four, so it became 37th.

Hence, the new rank of the girl from the end = 75 - 37 + 1 = 39th.

1. In a class of 50 students, a boy is ranked 25th. When 4 students left from the class, his rank increased by two. What is his new rank from the end?

1. 24th
2. 21st
3. 22nd
4. 23rd

Answer: (a) 24th

Solution: Total number of students after four students left = 46

Since, the rank of the boy increased by two, so it became 23rd.

Hence, the new rank of the boy from the end = 46 - 23 + 1 = 24th.

1. Rohan ranks 21st in a class of 35 students. What is his rank from the last?

1. 12th
2. 15th
3. 18th
4. 19th

Answer: (b) 15th

Solution: Total number of students = 35

Rank of Rohan from the last = 35 - 21 + 1 = 15th.

1. John ranks 8th from the top and 32nd from the bottom in a column of students. How many students are there in a class?

1. 29
2. 30
3. 35
4. 39

Answer: (d) 39

Solution: Total number of students in a column = 8 + 32 - 1 = 39

1. There are 45 students in a row. Jack was shifted by 5 places towards his right side and he occupied the middle position in the row. What was his original position from the left end of the row?

1. 22nd
2. 20th
3. 18th
4. 16th

Answer: (c) 18th

Solution:
Here the middle position is 23rd. Jack was shifted 5 places right to get the middle position.

Hence, the position of Jack from the left end = 23 - 5 = 18th.

1. Monika is 9th from either end of a row of girls. How many girls are there in that row?

1. 10
2. 12
3. 14
4. 17

Answer: (d) 17

Solution: Total number of girls in the row = 9 + 9 - 1 = 17

1. In a row of boys, Aman is 15th from the start and 18th from the end. In another row of boys, Akash is 12th from the start and 16th from the end. How many boys are there in both the rows together?

1. 49
2. 54
3. 57
4. 59

Answer: (d) 59

Solution: In first row, total number of boys = 15 + 18 - 1 = 32

In second row, total number of boys = 12 + 16 - 1 = 27

Hence, total number of boys in both the rows together = 32 + 27 = 59

1. Rahul is 13th from the left end in a row of students and Vicky is 15th from the right end. Vikash is 9th from Rahul towards the right and 5th from Vicky towards the right end. How many students are there in a row?

1. 36
2. 31
3. 30
4. 29

Answer: (b) 31

Solution:
Total number of students in the row = 12 + 1 + 8 + 1 + 9 = 31

1. Sunita ranks 22nd in a class of 55 students. What is her rank from the last?

1. 30
2. 32
3. 34
4. 36

Answer: (c) 34

Solution: Rank of Sunita from the last = 55 + 1 - 22 = 34

1. Aakash ranks 15th from last in a class of 35 students. What is his rank from the first?

1. 25
2. 23
3. 21
4. 20

Answer: (c) 21

Solution: Rank of Aakash from the first = 35 + 1 - 15 = 21