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data sufficiency all data sufficiency questions and answers paper 159 - skillgun

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Please read the below given text for solving questions from 1 to 20

Each question given below has a problem and two statements numbered I and II giving certain information. You have to decide if the information given in the statements is sufficient for answering the problem. Indicate your answer as (a) if the data in the statement I alone is sufficient to answer the question; (b) if the data in the statement II alone is sufficient to answer the question; (c) if the data either in I or II alone are sufficient to answer to question; (d) if the data even in both the statements together are not sufficient to answer the question; (e) if the data in both the statement together are needed.

**Description :**From I and II we conclude that there are 29 students below Amsa in rank.
Thus, Amsa is 1st rank in the class. So, both the statements are necessary.

**Description :**From II we conclude that Q is the brother-in-law of Sathish.
So, even from both the statements, we can't find out who is the father of Sathish.

**Description :**Statement II reveals that 18th was Sunday and therefore, 15th was Thursday.
So, only statement II is needed.

**Description :**From first statement, we have Avanthika > Bindu > Damayanthi.
From second statement, we have Charmi > Bindu.
Combining (i) and (ii), we can conclude that Damayanthi is the heaviest.
So, both the statements are needed.

**Description :**II reveals that previous bus had left at 7.45 p.m.
As given in I, the next bus would leave after 30 minutes.

**Description :**60' means 'injurious habit' and '268' means 'stop bad habit'.
Thus the common code number '6' stands fro common word 'habit'.
So, '0' represents 'injurious'. Hence I is sufficient.
Also '60' means 'injurious habit' and '940' means 'smoking is injurious'. thus, the common code number '0' stands for common word 'injurious'.
so, '6' represents 'habit'.
Thus II is also sufficient.

**Description :**From statement I, we conclude that Amsa's birthday is on April 3, which is Thursday, this year.
So, only I is needed.

**Description :**From statement I, we conclude that Amsa purchased the flat between 15th and 18th December.
From statement II we conclude that the flat was purchased between 16th and 19th December.
The day common to above two groups is 17th December.
So, Amsa purchased the flat on 17th December.
Thus both I and II are needed.

**Description :**From statement I, we can conclude that Deepika, Amsa and Sandy are of the same height.
Amsa is not taller than Sandy.
Thus only statement I is sufficient to answer the question.

**Description :**From both the given statements, we find that Ms. Amsa reached the bus stand at 9 A.M. and a bus is sure to arrive at 10 A.M.
So, Ms. Amsa has to wait for at the most one hour.

**Description :**From statement I, we can conclude that the president visited purchase department on Monday of the first week of September.
So, I alone is sufficient.
The time of visit of no department is mentioned in II, which is, therefore, insufficient.

**Description :**From both the statements together, we find that Ramesh is the father of Naresh and Naresh is the brother of Pavan.
So, Ramesh is the father of Pavan.
Thus both the given statements are needed.

**Description :**To find the rank from other end, we need to know the total number of student in the class, so I is sufficient.
Also from II we can conclude that there are 47 students in the class.
So II is also sufficient.

**Description :**From both the statements together, we find that Varun's father has three children.
Varun and his two sisters.
This mean that Varun has no brother.
So both I and II are needed.

**Description :**From given statements, we find that: K+T>S and R+K<S.
Thus who is oldest is not known.

**Description :**From both the given statements, we find that the number of coins sold this year is 750.
So both I and II required.

**Description :**Comparing the information in the question with statement I, we find that '3' and '0' are the codes for 'tie' and 'clip'. So, '8' represents 'button'. Thus, I alone is sufficient.
Again, comparing the information in the question with II, we find that the common code number '8' stands for the common word 'button'.
Thus II alone is sufficient.

**Description :**From statements I and II together, we can conclude only that either Ching is the sister or brother of Pushpa.
So even from both the statements the exact relation cannot be known. We don't the gender of Ching exactly.

**Description :**From I, we have: A=P. From II, we have : N<P<S.
Combining the above two, we have: N<A=P<S.
Sandy is the heaviest.
So both I and II are required.

**Description :**Clearly, each of the given statements shows that Qureshi is sitting opposite to Ramesh or Qureshi is the partner of Ramesh.