Data Sufficiency

Question: How is X related to Y ?

Statements:

Y and Z are children of D who is wife of X.
R's sister X is married to Ys father.

A:

I alone is sufficient while II alone is not sufficient

B:

II alone is sufficient while I alone is not sufficient

C:

Either I or II is sufficient

D:

Neither I nor II is sufficient

Answer: C

From I, we conclude that Y is the child of D who is wife of X i.e. X is Y's father.

From II, X is married to Y's father. This implies that X is Y's mother.

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Question: How is J related to P ?

Statements:

M is brother of P and T is sister of P.
P's mother is married to J's husband who has one son and two daughters.

A:

I alone is sufficient while II alone is not sufficient

B:

II alone is sufficient while I alone is not sufficient

C:

Either I or II is sufficient

D:

Neither I nor II is sufficient

Answer: B

From II, we know that P's mother is married to J's husband, which means that J is P's mother.

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Question: How is T related to K?

Statements:

R's sister J has married Ts brother L, who is the only son of his parents.
K is the only daughter of L and J.

A:

I alone is sufficient while II alone is not sufficient

B:

II alone is sufficient while I alone is not sufficient

C:

Either I or II is sufficient

D:

Neither I nor II is sufficient

Answer: E

From I, we know that L is T's brother and J's husband. Since L is the only son of his parents, T is L's sister.

From II, we know that K is L's daughter.

Thus, from I and II, we conclude that T is the sister of K's father i.e. T is K's aunt.

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Question: How many children are there between P and Q in a row of children ?

Statements:

P is fifteenth from the left in the row.
Q is exactly in the middle and there are ten children towards his right.

A:

I alone is sufficient while II alone is not sufficient

B:

II alone is sufficient while I alone is not sufficient

C:

Either I or II is sufficient

D:

Neither I nor II is sufficient

Answer: E

From II, Q being in the middle, there are 10 children to his right as well as to his left. So, Q is 11th from the left. From I, P is 15th from the left.

Thus, from both I and II, we conclude that there are 3 children between P and Q.

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Question: What is the code for 'sky' in the code language ?

Statements:

In the code language, 'sky is clear' is written as 'de ra fa'.
In the same code language, 'make it clear' is written as 'de ga jo'.

A:

I alone is sufficient while II alone is not sufficient

B:

II alone is sufficient while I alone is not sufficient

C:

Either I or II is sufficient

D:

Neither I nor II is sufficient

Answer: D

The only word common to I and II is 'clear' and as such, only the code for 'clear' can be ascertained from the given information.

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Questions for: Data Sufficiency