P and Q are children of S. Who is the father of P? To answer this question which of the statements (1) and (2) is/are necessary?
(1) R is the brother of P and the son of T.
(2) U is the mother of Q.
Evaluating Statements for Family Relationship Question
The objective is to find the father of P. We know P and Q are children of S.
Analysis of Statement (1)
- Statement (1) states that R is the brother of P and the son of T.
- This establishes that P and R are siblings.
- It also indicates that T is a parent of R. Since P and R are siblings, T is also a parent of P. T being a "son" implies T is male.
- However, the question mentions S is a parent of P. Statement (1) does not clarify the relationship between S and T, nor does it confirm T as the father of P.
- Therefore, Statement (1) alone is not sufficient.
Analysis of Statement (2)
- Statement (2) states that U is the mother of Q.
- Given that P and Q are children of S, they are siblings.
- If U is the mother of Q, then U is also the mother of P.
- Since S is a parent of P and U is the mother, S must necessarily be the father of P.
- Therefore, Statement (2) alone is sufficient.
Conclusion: To determine the father of P, only Statement (2) is required.
Important Questions from Data Sufficiency (Notes)
In this question, a question is followed by two statements numbered (I) and (II). You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements and decide the appropriate answer.
Q. Five students – Isha, Kavita, Meenal, Nisha, and Priti – scored different marks.Who scored the second highest?
(I) Meenal scored more than Isha but less than Nisha.
(II) Priti scored more than Meenal but less than Nisha.- In light of the statements I and II choose the most appropriate option.
If a group comprises of five persons A, B, C, D and E, then how many persons are taller than E?
Statement (I) A is taller than B and B is shorter than A and E only.
Statement (II) C is shorter than A and A is shorter than E. - In light of the statements I and II choose the most appropriate option.
Eight boxes- A, B, C, D, P, Q, R and S are stacked vertically but not necessarily in the same order. Which among them is kept immediately above R?
Statement (I) Only three boxes are kept above D and only one box is kept between D and Q. Q is kept lower than D and is immediately below P.
Statement (II) Only one box is kept between A and C. C is kept three boxes above Q. As many boxes are kept above B as are kept below R. - A question along with a set of statements is given. Find which of the given statements is/are sufficient to answer the given question.
Question:
Find the perimeter of a triangle given that:
Statements:
I. Area of the triangle is 24 sq. units.
II. Height of the triangle is 4 units. A question along with a set of statements is given below. We have to find which of the given statements is/are sufficient to answer the given question.
Question : Find the area of the triangle PQR.
Statements :
I. PQ = 5 m., PR = 5 m.
II. Length of PO is 4 m.
