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Q:

How many sons does X have ?

I. Q and U are brothers of T.

II. R is sister of P and U.

III. R and T are daughters of X.

A) I and 11 only	B) I, II and III together
C) II and III together	D) I, II and III together are not sufficient

Answer & Explanation Answer: D) I, II and III together are not sufficient

Explanation:

The information given in the three statements together is also not sufficient to answer the given question.

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Filed Under: Data Sufficiency

Q:

What is the price range of ordinary wall clocks ?

I. The price range of ordinary wrist watches of company X is Rs 400 to Rs 600.

II. The price range of ordinary wall clocks of company X is 50 percent that of their ordinary watches.

A) If the data in statement I alone are sufficient to answer the question	B) If the data in statement II alone are sufficient answer the question
C) If the data either in I or II alone are sufficient to answer the question;	D) If the data even in both the statements together are sufficient to answer the question

Answer & Explanation Answer: D) If the data even in both the statements together are sufficient to answer the question

Explanation:

From both the statements together, we can conclude that the price range of ordinary wall clocks is Rs 200 to Rs 300. Thus, both I and II are required

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Q:

Gaurav ranks eighteenth in a class. What is his rank from the last ?

I. There are 47 students in the class.

II. Jatin who ranks 10th in the same class, ranks 38th from the last.

A) If the data in statement I alone are sufficient to answer the question	B) If the data in statement II alone are sufficient answer the question
C) If the data either in I or II alone are sufficient to answer the question;	D) If the data even in both the statements together are not sufficient to answer the question

Answer & Explanation Answer: C) If the data either in I or II alone are sufficient to answer the question;

Explanation:

To find the rank from other end, we need to know the total number of students in the class. So. I is sufficient. Also: from II, we can conclude that there are (10 + 38- 1 = 47) students in the class.

So. II alone is also sufficient.

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Q:

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 scheduled in the last period.

III. Mathematics period was immediately followed by Chemistry.

A) Only I	B) Only I or Only II
C) Only II	D) I and II together or I and III together

Answer & Explanation Answer: D) I and II together or I and III together

Explanation:

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.

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Filed Under: Data Sufficiency

Q:

Convert the expression ((A + B) * C – (D – E) ^ (F + G)) to equivalent Postfix notations.

A) AC + B * DE - FG +^-	B) AB + C * DE - FG + ^-
C) AC + B* DE - FG -+ ^	D) AB + C * DE - FG -+ ^

Answer & Explanation Answer: B) AB + C * DE - FG + ^-

Explanation:

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Filed Under: Java

Q:

In which Ocean is the Christmas Island located?

A) Pacific Ocean	B) Indian Ocean
C) Arctic Ocean	D) Antarctic Ocean

Answer & Explanation Answer: B) Indian Ocean

Explanation:

It is located in Indian Ocean

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Filed Under: World Geography

Q:

Among four friends A, B, C and D. who is the heaviest ?

I. B is heavier than A. but lighter than D.

II. C is lighter than B.

A) If the data in statement I alone are sufficient to answer the question	B) If the data in statement II alone are sufficient answer the question
C) If the data either in I or II alone are sufficient to answer the question;	D) If the data in both the statements together are needed.

Answer & Explanation Answer: D) If the data in both the statements together are needed.

Explanation:

From I. we have A <B< D.

From II. we have C < B

Combining( I) and (II), we can conclude that D is the heaviest

So. both the statements are needed

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Filed Under: Data Sufficiency

Q:

Among five friends who is the tallest ?

I. D is taller than A and C.

II. B is shorter than E but taller than D.

A) If the data in statement I alone are sufficient to answer the question	B) If the data in statement II alone are sufficient answer the question
C) If the data either in I or II alone are sufficient to answer the question;	D) If the data in both the statements together are needed.

Answer & Explanation Answer: D) If the data in both the statements together are needed.

Explanation:

From I, we have : D > A , D> C,

From II, we have : E >B > D.

Combining the above two, we get : E > B> D> (A and C).

So, E is the tallest.

Clearly, both the statements are needed to answer the question

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Filed Under: Data Sufficiency

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