Verbal Reasoning :: Data Sufficiency

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1 / 89

 Two socks are to be picked at random from a drawer containing only black and white socks. What is the probability that both are white?

Statement:
1. The probability of the first sock being black is 1/3.
2. There are 24 white socks in the drawer.

Astatement 1 alone is sufficient, but statement 2 alone is not sufficient to answer the question

Bstatement 2 alone is sufficient, but statement 1 alone is not sufficient to answer the question

Cboth statements taken together are sufficient to answer the question, but neither statement alone is sufficient

Deach statement alone is sufficient

Estatements 1 and 2 together are not sufficient, and additional data is needed to answer the question

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Answer: Option C

Explanation:

Here is no explanation for this answer

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2 / 89

 Question: A bucket was placed under a dripping tap which was dripping at a uniform rate. At what time was the bucket full?

Statement:
(i) The bucket was put in place at 2pm.
(ii) The bucket was half full at 6pm and three-quarters full at 8pm on the same day.

Astatement 1 alone is sufficient, but statement 2 alone is not sufficient to answer the question

Bstatement 2 alone is sufficient, but statement 1 alone is not sufficient to answer the question

Cboth statements taken together are sufficient to answer the question, but neither statement alone is sufficient

Deach statement alone is sufficient

Estatements 1 and 2 together are not sufficient, and additional data is needed to answer the question

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Answer: Option B

Explanation:

Here is no explanation for this answer

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3 / 89

 Question: Is X the brother of Y?
Statements:
(i) X is the daughter of z
(ii) y is the daughter of z

AStatement (i) alone is sufficient while (ii) alone is not sufficient

BStatement (ii) alone is sufficient while (i) alone is not sufficient

CStatements (i) and (ii) together are necessary to answer

DEither I or II is sufficient

EBoth statements (i) and (ii) together are not sufficient to answer

Answer: Option A

Explanation:

From the first statement itself we find that X cannot be a brother (a male) because she is, in fact, a daughter (a female) of Z

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4 / 89

 Question: Is Shyam the brother of Mohan?
Statements:
(i) Ram is the father of Shyam.
(ii) Ram is the father of Mohan.

AStatement (i) alone is sufficient while (ii) alone is not sufficient

BStatement (ii) alone is sufficient while (i) alone is not sufficient

CStatements (i) and (ii) together are necessary to answer

DEither I or II is sufficient

EBoth statements (i) and (ii) together are not sufficient to answer

Answer: Option C

Explanation:

Here is no explanation for this answer

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5 / 89

 Question: How far is Patna from Shimla?

Statements:
(i) Patna is 200 km from Delhi.
(ii) Delhi is.500 km from Shimla.

AStatement (i) alone is sufficient while (ii) alone is not sufficient

BStatement (ii) alone is sufficient while (i) alone is not sufficient

CStatements (i) and (ii) together are necessary to answer

DEither I or II is sufficient

EBoth statements (i) and (ii) together are not sufficient to answer

Answer: Option E

Explanation:

The two statements are not sufficient. We would also need to know if Delhi is between Patna and Shimla or Patna is between Delhi and Shimla.

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6 / 89

 Question: On which day did Radha reach Shimla?
Statements:
(i) Only Sunday is a holiday.
(ii) Radha travels only on a holiday.

AStatement (i) alone is sufficient while (ii) alone is not sufficient

BStatement (ii) alone is sufficient while (i) alone is not sufficient

CStatements (i) and (ii) together are necessary to answer

DEither I or II is sufficient

EBoth statements (i) and (ii) together are not sufficient to answer

Answer: Option E

Explanation:

From the two statements, we can be sure that Radha travelled for Shimla on a Sunday but we still cannot be sure that she reached Shimla on Sunday,

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7 / 89

 Question: On what date is Anju's birthday?
Statements:
(i) Anju's birthday comes only in a leap year.
(ii) Anju's birthday is the same as that of Morarji Desai.

AStatement (i) alone is sufficient while (ii) alone is not sufficient

BStatement (ii) alone is sufficient while (i) alone is not sufficient

CStatements (i) and (ii) together are necessary to answer

DEither I or II is sufficient

EBoth statements (i) and (ii) together are not sufficient to answer

Answer: Option D

Explanation:

We can get the answer (29 February) from statement (1) alone because 29 February is the only date that comes only in a leap year. From the second statement alone, we can also find the answer.

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8 / 89

 Question: On what date is Anju's birthday?
Statements:
(i) Minu says that her birthday falls before 28.th March, 1974.
(ii) Sonu says that her birthday falls after 28th March, 1974.

AStatement (i) alone is sufficient while (ii) alone is not sufficient

BStatement (ii) alone is sufficient while (i) alone is not sufficient

CStatements (i) and (ii) together are necessary to answer

DEither I or II is sufficient

EBoth statements (i) and (ii) together are not sufficient to answer

Answer: Option E

Explanation:

From the given two statements, we cannot find the exact date of birth. It may be 26th March, 1974 or 27th March, 1974

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9 / 89

 Question: What is the age of Ramprakash?
Statements:
(i) Ramprakash was born when his father was 26 yrs old
(ii) Ramprakash's mother's age is 3yrs less than his father's

AStatement (i) alone is sufficient while (ii) alone is not sufficient

BStatement (ii) alone is sufficient while (i) alone is not sufficient

CStatements (i) and (ii) together are necessary to answer

DEither I or II is sufficient

EBoth statements (i) and (ii) together are not sufficient to answer

Answer: Option E

Explanation:

Here is no explanation for this answer

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10 / 89

 Question: Raman and Gaurav Brought eggs from a vendor. How many eggs were bought by each of them
Statements:
(i) Raman bought half as many as Gaurav.
(ii) The dealer had a stock of 500 eggs at the beginning of day.

AStatement (i) alone is sufficient while (ii) alone is not sufficient

BStatement (ii) alone is sufficient while (i) alone is not sufficient

CStatements (i) and (ii) together are necessary to answer

DEither I or II is sufficient

EBoth statements (i) and (ii) together are not sufficient to answer

Answer: Option E

Explanation:

Here is no explanation for this answer

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