Order and Ranking– Railway Reasoning (Part-I)

Total Questions: 50

31. Which of the following options is 6th to the right of the 17th factor from the left in the English alphabet? [NTPC CBT-1 17/02/2021 (Evening)]

Correct Answer: (a) W
Solution:

17 + 6 = 23rd = W

32. Read the given information carefully and answer the question that follows. [NTPC CBT-1 01/03/2021 (Evening)]

Seven students P, Q, R, S, T, U and V are standing in a row, from left to right in increasing order of their weights. P is standing at the middle position. R and V are at the second positions from the right and left sides, respectively. U is standing immediately after R. T is standing between R and P. S is at the third position from the least weight side.
Whose weight is minimum among all the students?

Correct Answer: (d) Q
Solution:

The weight of Q is minimum.

33. Read the given information carefully and answer the questions that follow. [NTPC CBT-1 03/03/2021 (Evening)]

Six students P, Q, R, S, T and U are the top six rank holders in a school. The rank of Q is between the rank of R and S. Q is the fourth rank. There are two students between the ranks of T and S. T is at the lowest rank among them. The rank of U is immediately above the rank of P.
Who is at the fifth rank?

Correct Answer: (d) R
Solution:

U > P > S > Q > R > T

34. Four girls, Radha, Neena, Mohita and Jyoti, are to be served in a sequence by a service provider. However, there are some limitations as follows: Mohita and Jyoti cannot be served one after the other; Neena cannot be served at the third number in sequence; and Radha and Neena are to be served one after the other. Considering the given information, which of the following statements is compulsorily true? [NTPC CBT - I 07/03/2021 (Evening)]

Correct Answer: (c) Radha will be served third.
Solution:

From the given information it is not clear or definite that Mohita cannot be served first. So, statement (a) is false. But we can not surely say that Mohita will be served first.
So, statement (b) is also false.
It is also not definitely true that Jyoti will be served first. So, statement (d) is false. Again, considering all the possibilities of the arrangement it is found that Radha has to be served in the third position. So, statement (c) is true.

35. 21 Students are standing in a line. Ram is standing at the 6th place from the left of the line. Suresh is standing at the 8th place after Ram. Mohan is standing at the 10th place from the right of the line. How many students are standing between Suresh and Mohan? [NTPC CBT-1 09/03/2021 (Morning)]

Correct Answer: (a) 01
Solution:

Position of suresh from left = 6 + 8 = 14th
Position of Mohan from left = 21 10 + 1 = 12th −
Number of students between Suresh and Mohan = ( 14 − 12 ) − 1 = 1

36. 5 students, A,B,C,D and E are standing in a queue during school assembly. C is standing behind D. E is not standing behind B. A is standing ahead of C but not ahead of B. If behind means 'being exactly next to someone's back' and ahead does not mean 'exactly in front of', who among the 5 students is standing at the third position? [NTPC CBT-1 11/03/2021 (Morning)]

Correct Answer: (a) A
Solution:

E - B - A - D - C

37. Six bowlers B1, B2, B3, B4, B5 and B6 are compared on the basis of their bowling speed. Speed of B5 is more than B4 only. Speed of B1 is less than B2 and B3 but more than B5 and B6. Which of the following can be the correct order of their speed? [NTPC CBT-1 21/03/2021 (Morning)]

Correct Answer: (a) B2 > B3 > B1 > B6 > B5 > B4
Solution:

(i) Speed of B5 is more than B4 only
(ii)Speed of B1 is less than B2 and B3 but more than B5 and B6
So that ,B2 > B3 > B1 > B6 > B5 >

38. Ages of 6 girls P, Q, R, S, T and U are compared. S is elder to R and U but younger to P. Only one girl is elder to T. Which of the following sequence of their ages is not possible (decreasing order of their ages from left)? [NTPC CBT-1 03/04/2021 (Evening)]

Correct Answer: (a) Q, T, S, P, R, U
Solution:

Possible conditions -
(i) Q >T > P > S > R > U
(ii) P >T > Q > S > R > U
(iii) P >T > S > R > U > Q
So , option (a) is not possible

39. Q.39. Which of the following is the correct order of the Roman numerals C,D,L,X and M? [NTPC CBT - I 08/04/2021 (Morning)]

Correct Answer: (a) M > D > C > L > X
Solution:

M(1000) > D(500) > C(100) > L(50) > X(10)

40. In a class of students, paulo ranked 18th from the top and 45th from bottom. What is the total number of students in the class ? [Group-D 17/08/2022 (Morning)]

Correct Answer: (b) 62
Solution:

Total number of students = (Ranking from top + Ranking from
bottom - 1) Total number of students = (18 + 45 - 1 ) = 62 students