# Data Sufficiency Quiz Set 007

### Question 1

You have to decide whether the data provided in the statements are sufficient to answer the question. Read the statements and give your answer.

Which one of the integers a, b, c, d and e are odd numbers?

1. a, b, c, d and e are consecutive numbers.
2. c is an even number.
A

if 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 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 data either in statement I alone or in the statement II alone are sufficient to answer the question.

D

if data in both the statements I and II together are needed to answer the question.

Soln.
Ans: d

Using statement I alone, it can't be said definitely which of the integers out of a, b, c, d, e will be odd numbers. However, using statement II with statement I, we can find that if c is even, b and d will be odd.

### Question 2

You have to decide whether the data provided in the statements are sufficient to answer the question. Read the statements and give your answer.

In a class of 60 students, how many boys scored over 90% in the Chemistry test?

1. Exactly 5 girls scored over 90% in the test.
2. 2/3rd of the class scored over 90% in the test.
A

if statement I alone is sufficient but statement II alone is not sufficient.

B

if statement II alone is sufficient but statement I alone is not sufficient.

C

if both statements I and II together are sufficient but neither of statements alone is sufficient.

D

if each statement alone is sufficient.

Soln.
Ans: c

From statement II, it is clear that out of 60 students, 40 students scored over 90% in the test . Now it is given in statement I that 5 girls scored over 90%.

Hence, number of boys who scored more than 90% = 40 − 5 = 35.

### Question 3

The following question consists of a question followed by two statements labeled I and II. You have to decide whether the data given in the statement (s) is /are sufficient for answering the question.

How many students are there in the class?

1. Deepak is 10th from right and Jassi is 14th from left.
2. After interchanging their positions, Deepak becomes 27th from right.
A

if 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 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 data either in statement I alone or in the statement II alone are sufficient to answer the question.

D

if data in both the statements I and II together are needed to answer the question.

Soln.
Ans: d

On combining both the statements, total number of students in the class is calculated as 40.

### Question 4

You have to decide whether the data provided in the statements are sufficient to answer the question. Read the statements and give your answer.

How long would it take Arjun to complete the work?

1. Arjun and Sharan together complete the work in 10 days.
2. Arjun takes 5 days more than Sharan to complete the work.
A

if statement I alone is sufficient but statement II alone is not sufficient.

B

if statement II alone is sufficient but statement I alone is not sufficient.

C

if both statements I and II together are sufficient but neither of statements alone is sufficient.

D

if each statement alone is sufficient.

Soln.
Ans: c

Using statement I and II together, question can be answered easily.

### Question 5

The following question consists of a question followed by two statements labeled I and II. You have to decide whether the data given in the statement (s) is /are sufficient for answering the question.

What is the difference in the age of P and K?

1. P is 20 years older than M.
2. M is 2 years younger than Z.
A

if 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 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 data either in statement I alone or in the statement II alone are sufficient to answer the question.

D

if data even in both the statements together are not sufficient to answer the question.

Soln.
Ans: d

Because relation between P and K cannot be established with the help of statement I and II. Hence, even both the statements cannot answer the question.