Data Sufficiency Puzzle Test

Data Sufficiency : this topic tests the knowledge of basic math , facts and skills along with reasoning, analytical, and problem-solving abilities in a candidate. Each data sufficiency item presents you with a question. You do not actually have to find the answer to the problem; instead, your challenge is to decide whether or not the information presented along with the question would be sufficient to allow you to answer the question.

Approach : Solve the questions step by step. First, try to find the answer using information in first statement, then try only second, and finally try combining the information in both.

Direction : In each of the following problems, there is one question and two or three statements are given below the questions. You have to decide whether the data given in the statements is sufficient to answer the question. Read all the statements carefully and find which of the statements is/are sufficient to answer the given questions. Choose the correct alternative in each question.

You have to decide whether the data provided in the statements is sufficient to answer the question, and then give your answer accordingly.

Only I is sufficient.

Only II is sufficient.

Both I and II are required.

Both I and II are not sufficient.

Question 1: Four subjects - Physics, Chemistry, Mathematics and Biology - were taught in four consecutive periods of one hour each starting from 8.00 a.m. At what time was the Chemistry period scheduled ?

I. Mathematics period ended at 10.00 a.m., which was preceded by Biology.

II. Physics was schedules in the last period

III. Mathematics period was immediately followed by Chemistry.

(a) Only I (b) Either I only or II only (c) Only II (d) Only II and III (e) Only I and either II or III

Answer : (e) :

From I and II, we conclude that Mathematics period began at 9.00 a.m., Biology period began at 8.00 a.m. and Physics period began at 11 a.m. So, the Chemistry period began at 10.00 a.m.

From I and III, we conclude that Mathematics period ended and Chemistry period began at 10.00 a.m.

Sample Questions

(More Questions for each concept available in Login)

Question : 1

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 statement: are sufficient to answer the question. Read both the statements and give answer. Question : - The Chairman of a big company visits one department on Monday of every week except for the Monday of third week of every month. When did he visit the Purchase department? I. He visited Accounts department in the second week of September after having visited Purchase department on the earlier occasion. II. He had visited Purchase department immediately after visiting Stores department but before visiting Accounts department.
A. If the data in statement I alone are sufficient to answer the question, while the data in statement II alone are not sufficient to answer the question.
B. If the data in statement II alone are sufficient to answer the question, while the data in statement I alone are not sufficient to answer the question.
C. If the data either in statement I alone or in statement II alone are sufficient to answer the question.
D. If the data either in statement I alone or in statement II alone are sufficient to answer the question.
Right Option : A
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Question : 2

In the given problem, a question is following by two statements numbered I and II. You have to decide whether the data provided in the statement is sufficient to answer the question, and then give your answer accordingly. Question : There are 5 persons, Radha, Shyam, Mohan, Kiran, Manpreet. One of them living alone. Which of the following is roommate of Kiran ? I. Kiran roommate name starts with the alphabet having even number code. II. The name of two persons starts from same letter, are living same room.
A. If the data in statement I alone are sufficient to answer the question, while the data in statement II alone are not sufficient to answer the question
B. If the data in statement II alone are sufficient to answer the question, while the data in statement I alone are not sufficient to answer the question
C. If the data given in both statements I and II together are not sufficient to answer the question
D. If the data in both statements I and II together are necessary to answer the question.
Right Option : A
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Question : 3

In the given problem, a question is following by two statements numbered I and II. You have to decide whether the data provided in the statement is sufficient to answer the question, and then give your answer accordingly. Question : There are 5 persons, Radha, Shyam, Mohan, Kiran, Manpreet. One of them living alone. Who lives alone ? I. Kiran roommate name starts with the alphabet having even number code. II. The name of two persons starts from same letter, are living same room.
A. If the data in statement I alone are sufficient to answer the question, while the data in statement II alone are not sufficient to answer the question	B. If the data in statement II alone are sufficient to answer the question, while the data in statement I alone are not sufficient to answer the question	C. If the data given in both statements I and II together are not sufficient to answer the question	D. If the data in both statements I and II together are necessary to answer the question.
Right Option : D
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