Data Sufficiency – Railway Reasoning

Total Questions: 54

1. Study the given information carefully and answer that follows. [NTPC CBT II Level 6 (09/05/2022) Shift 2]

The administration has set the following criteria for the selection of a teacher in school. The candidate must:
A. Be a graduate with at least 50% marks.
B. Have a qualified bachelor’s degree in education.
C. Not be less than 21 years and not more than 32 years as on 1 st july 2021.
D. For a candidate with Master in Education, the school board may relax the upper age limit.
Rahul verma is teaching in a reputed school. He is a 1st class graduate. He was 23 years old when he joined the previous school as a teacher. He has also completes B.Ed.

Correct Answer: (b) the data given are not sufficient to take a decision.
Solution:

Rahul verma has attained the required minimum age of 21 years but there is nothing mentioned about his current age so the condition of maximum age limit i.e. 32 years can not be cross checked. So the data given is not sufficient to take a decision.

2. Question: How is damini related to Bhola? [NTPC CBT II Level 5 (12/06/2022) Shift 1]

Statement:
I. Tika has only one son, Bhola and only one daughter, kamala.
II. Damini is Roma’s son’s wife. Kamala is the only daughter of Roma. Meghan is the daughter of Bhola.

Correct Answer: (c) Both statements I and II together are sufficient to answer the question.
Solution:So, Both statements I and II together are sufficient to answer the question.

3. Question: In which year was Dheeraj born ? [NTPC CBT II Level 2 (13/06/2022) Shift 1]

 Statements:
 I. Dheeraj at present is 35 years younger to his mother parvati.
II. Dheeraj’s brother Shan, who was born in 1998 is 45 years younger to his mother parvati.

Correct Answer: (b) Both I and II together are sufficient
Solution:

According to the given statement, Both I and II together are sufficient.

4. Question: In a certain code language ‘pu ma kas’ means ‘we eat mangoes’. What is the code of ‘mangoes’ ? [NTPC CBT II Level 5 (15/06/2022) Shift 3]

 Statements:
 I. ‘la ti kas’ means ‘we are graduates’.
II. ‘hum tup pu’ means ‘they eat bananas’.

Correct Answer: (c) Statements I and II together are sufficient to answer the question.
Solution:

We have been given in question that,
“pu ma kas = we eat mangoes”
from statement (i)
“la ti kas = we are graduate”
When we compare to question and statement (i), we get
“we = kas”
from statement (ii)
“hum tup pu = they eat bananas”
When we compare to question and statement (ii), we get
“pu = eat”
Only “ma = eat” is remaining in the  question statement.
So, we can say that “ma = mangoes”
Hence, we can say that to find the answer to this question, we use both the statements.

5. Question: How many workers are there in a factory? [NTPC CBT II Level 5 (15/06/2022) Shift 2]

Statements:
I. There are more than 30 but less than 37 workers in the factory.
II. There are more than 34 but less than 41 workers in the factory. The number of workers in the factory can be divided into two groups in such a manner that each group contains an equal number of workers.

Correct Answer: (c) Both statements I and II together are sufficient to answer the question
Solution:

From both the statements, The possible numbers of workers = 35 and 36 Since we need an equal number of workers in both the groups.
So, 36(18 + 18) is the correct answer.
So, Both the statements are sufficient to answer the question.

6. Question: Who ranked first in the class? [NTPC CBT II Level 2 (16/06/2022) Shift 3]

Statements:
I. Sreeja ranked 2 𝑛𝑑
II. Aman ranked one rank below Sreeja. III. Rohit ranked better than Aman.

Correct Answer: (b) All statements I,II and III together are sufficient.
Solution:

In Statement (i) ⇒ Sreeja ranked 2ⁿᵈ
In Statement (ii) ⇒ Aman ranked one rank below Sreeja.
In Statement (iii) ⇒ Rohit ranked better than Aman.
From (i) and (ii) we get
Aman ranked one rank below Sreeja i.e.
Aman ranked 3ʳᵈ
From (ii) and (iii) we get
Rohit ranked better than Aman i.e. Rohit ranked 1ˢᵗ
So, we can say that to find the answer to this question we use all three
statements.

7. Question: Who is the shortest among A, B, C, D and E ? [NTPC CBT - I 04/01/2021 (Evening)]

 Statements:
I. A is taller than E but shorter than D.
II. B is shorter than C but taller than E.
III. D is taller than C and A is taller than B.

Correct Answer: (d) Statements I, II and III are sufficient.
Solution:

D > C > A > B > E
From the above arrangements, it is clear that E is the shortest among all and Statements I, II and III are sufficient.

8. Question: When is Yuvi’s wedding anniversary? [NTPC CBT - I 29/12/2020 (Morning)]

Statements:
1. On 7th day of a month.
2. The month has 29 days only in a leap year.

Correct Answer: (c) Both statements 1 and statement 2 are sufficient together
Solution:

Here in the first statement a month is not specified only the date is given. So both statements 1 and statement 2 are sufficient together.

9. Question: Find the ratio of boys and girls in the class? [ALP Tier II 21/01/2019 (Morning)]

 statement : I) There are 20 boys in the class. II) The ratio of the number of girls and students in the whole class is 3 : 7.

Correct Answer: (a) Statement ॥ alone is sufficient, while Statement alone is not sufficient.
Solution:

Since, statement II clearly gives the ratio of girls and students in the class.
So, Only statement II is sufficient to answer the given question, while Statement I is not sufficient.

10. Question: What was the income of the zoo on a certain day? [ALP Tier II 21/01/2019 (Evening)]

Statement : I) 120 persons visited the zoo on that particular day. II) A discount of 25% was offered on the ticket price on that particular day.

Correct Answer: (a) Neither statement। nor || is adequate
Solution:

Here, statement I only gives information about how many people visited the zoo that day. And the statement II only gives information about the discount at the ticket, not for the original price of the ticket. So, Neither conclusion I nor conclusion II is sufficient.