Order and Ranking Quiz: Reasoning Practice

Spoilers! These are the Starter quiz’s answers. Easy, Medium, Hard and Mixed rounds show their own answers when you finish.

1. In a row of boys, Rahul is 12th from the left end and 17th from the right end. How many boys are there in the row?

   • 27
   • 28
   • 29
   • 30

   Answer: 28. Rahul is counted from both ends, so total = 12 + 17 - 1 = 28.

2. In a class of 45 students, Priya's rank is 16th from the top. What is her rank from the bottom?

   • 29
   • 31
   • 30
   • 28

   Answer: 30. Rank from bottom = total - rank from top + 1 = 45 - 16 + 1 = 30.

3. In a row, A is 10th from the left end and B is 15th from the right end. When A and B interchange their positions, A becomes 18th from the left end. How many people are in the row?

   • 32
   • 33
   • 31
   • 28

   Answer: 32. After the swap A stands where B stood, so B's old place was 18th from the left — and it was 15th from the right. Total = 18 + 15 - 1 = 32.

4. In a queue, Ajay is 14th from the front and Vijay is 20th from the back. There are exactly 8 people between Ajay and Vijay. What is the minimum possible number of people in the queue?

   • 42
   • 23
   • 26
   • 24

   Answer: 24. If Ajay is ahead, Vijay is 23rd from the front and the queue has 23 + 20 - 1 = 42 people. If Vijay is ahead, he is 14 - 9 = 5th from the front, giving 5 + 20 - 1 = 24 people. The minimum is 24.

5. In a row of 40 children, Kavya is 11th from the left end and Deepak is 9th from the right end. How many children sit between Kavya and Deepak?

   • 21
   • 19
   • 20
   • 22

   Answer: 20. Deepak is 40 - 9 + 1 = 32nd from the left. Children between = 32 - 11 - 1 = 20.

6. In a class, Sona ranks 7th from the top. Mona is 5 ranks below Sona and is 28th from the bottom. How many students are in the class?

   • 40
   • 39
   • 38
   • 34

   Answer: 39. Mona is 7 + 5 = 12th from the top and 28th from the bottom, so total = 12 + 28 - 1 = 39.

7. Raj is 9th from the left end of a row of 25 boys. How many places must he move to the right to stand exactly in the middle of the row?

   • 4
   • 3
   • 5
   • 13

   Answer: 4. In a row of 25, the middle position is (25 + 1) ÷ 2 = 13th. Raj must move from 9th to 13th: 4 places.

8. In a straight line of trees, one tree is 7th from either end. How many trees are there in the line?

   • 14
   • 12
   • 15
   • 13

   Answer: 13. Total = 7 + 7 - 1 = 13, because the tree itself is counted from both ends.

9. In an examination, Sita is 15th from the top and 30th from the bottom among the students who passed. 6 students failed and 3 were absent. How many students are there in the class?

   • 50
   • 53
   • 44
   • 47

   Answer: 53. Passed students = 15 + 30 - 1 = 44. Adding those who failed and those absent: 44 + 6 + 3 = 53.

10. Girls stand in a row facing north. Uma is 12th from the left end. Tina is 8th to the right of Uma and 6th from the right end. How many girls are in the row?

    • 24
    • 26
    • 27
    • 25

    Answer: 25. Tina is 12 + 8 = 20th from the left and 6th from the right, so total = 20 + 6 - 1 = 25.