Data Sufficiency Reasoning Mcq Model Questions & Answers, Practice Test for ssc chsl tier 1 2024

Directions:

Each of the questions below consists of a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question.

Question :1

Is P aunt of M?
I. A is son of P. A is brother of B. B is daughter of C. F is sister of C. M is daughter of F.
II. D is father of M. F is mother of M. K is brother of F. K has two children J and R. P is married to K.

Answer: (b)

From I.

Gender of P and C is not given. Therefore, either P or C is mother or father of A and B. Hence we can't say whether P is aunt of M.

From II.

Hence P is aunt of M. Therefore only statement II is sufficient to answer the question.

Question :2

Among V, W, X, Y and Z, seated in a straight line facing south, who sit at the extreme ends of the row?
I. W sits to the right of V. Z is not an immediate neighbour of Y.
II. V sits third to the left of Y. W sits on the immediate right of X.

Answer: (e)

From both I and II.

Y and Z are extreme ends of the row. Hence both are sufficient to answer the question.

Question :3

In which month (of the same year) does Lokesh appear for an exam?
I. Lokesh's sister correctly remembers that he appeared for the exam after March but before August and that the month of his exam had exactly 31 days.
II. Lokesh's mother correctly remembers that he appeared for the exam after June but before November and that the month of his exam did not have 30 days.

Answer: (e)

From I: According to Lokesh's sister, he appeared for the exam either in May or in July.

From II: According to Lokesh's mother, he appeared for the exam in July, August or October.

From I and II. Common month is July. Hence Lokesh appeared for the exam in July.

Question :4

Who among P, Q, R, S and T is the shortest?
I. P is as tall as T, who is taller than R. But not taller than S.
II. R is shortest that P and S is taller than T.

Answer: (d)

From I: S > P = T > R

From II: P > R, S > T

We have no information about Q. Hence both statements I and II are not sufficient to answer the question.

Question :5

How far and in which direction is point T from point S?
I. Point T is 22m to the West of point Q. Point Q is 8m to the north of point R. Point L is 9m to the west of point R. Point P is 8m to the north of point O. Point P is to the west of point S.

Answer: (d)

From I. The distance between T and S is not given.

From II.

Hence point T is to the west of point S but since the distance between P and S is not given, we can't find the distance between T and S.

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