Data Sufficiency for SBI Clerk

Data Sufficiency questions will be asked as a group, a given pattern should be absorbed and based on the observed pattern.

Data Sufficiency for SBI Clerk:

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Instructions:

Each of the question below consists of a question and two statements numbered I and II given below it.You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements and give answer

Question 1:

Which bag amongst P,Q,R,S and T is the heaviest ?
I. Bag Q is heavier than R and S. Bag T is heavier than only bag P.
II. Only three bags are lighter than R. The weight of bag Q is 50kg, which is 2 kg more than bag R.

a) If the 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 the 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 the data either in statement I alone or in statement II alone are sufficient to answer the question.
d) If the data even in both statements I and II together are not sufficient to answer the question.
e) If the data in both statements I and II together are necessary to answer the question.

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Question 2:

Are all the five friends-A,B,C,D and E – who are seated around a circular table facing the center ?
I.A sits to the left of B. B faces the centre. D and E are immediate neighbour of each other. C sits second to the right of E.
II.D sits second to right of C.C faces the center. Both E and A are immediate neighbours of D.B sits second to the right of A.

a) If the 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 the 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 the data either in statement I alone or in statement II alone are sufficient to answer the question.
d) If the data even in both statements I and II together are not sufficient to answer the question.
e) If the data in both statements I and II together are necessary to answer the question.

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Question 3:

In a college, five different subjects, viz Physics Chemistry,Botany,Zoology and Mathematics are taught on five different days of the same week starting from monday and ending on friday.Is.Chemistry taught on Wednesday ?
I.Two subjects are taught between Zoology and Mathematics.Mathematics is taught before Zoology.Chemistry is taught on the day immediately next to the day when Physics is taught.Botany is not taught on Friday.
II.Three lectures are scheduled between the lectures of Botany and Zoology. Mathematics is taught immediately before Physics.

a) If the 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 the 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 the data either in statement I alone or in statement II alone are sufficient to answer the question.
d) If the data even in both statements I and II together are not sufficient to answer the question.
e) If the data in both statements I and II together are necessary to answer the question.

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Question 4:

Is it 9 o’ clock now ?
I. After half an hour the minute and the hour hands of the clock will make an angle of exactly 90 with each other
II. Exactly 15 minutes ago the hour and the minute hands of the clock coincided with each other

a) If the 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 the 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 the data either in statement I alone or in statement II alone are sufficient to answer the question.
d) If the data even in both statements I and II together are not sufficient to answer the question.
e) If the data in both statements I and II together are necessary to answer the question.

Question 5: 

Is F granddaughter of B ?
I.B is the father of M.M is the sister of T.T is the mother of F.
II.S is the son of F. V is the daughter of F. R is the brother of T.

a) If the 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 the 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 the data either in statement I alone or in statement II alone are sufficient to answer the question.
d) If the data even in both statements I and II together are not sufficient to answer the question.
e) If the data in both statements I and II together are necessary to answer the question.

Solutions (1 to 5)

1) Answer (c)

From statement 1, we get Q> R, S and T>P. Hence, Q> R / S >= S / R > T > P. Hence, Q is the heaviest.
From statement 2, R is second heaviest and Q is heavier than R. Hence, Q is the heaviest.
Hence, the question can be answered using either statement alone.

2) Answer (b)

Data in statement II alone is sufficient to give us the idea that 5 friends are sitting around a circular table.
Data in statement I contains missing information regarding the position of E with respect to A or B. Hence, we cannot say with surety whether the A,B,C,D and E are facing the centre by sitting in circular manner or not.
Hence, option B  is correct.

3) Answer (a)

Data in statement 1 is enough to give us idea about the order of the subjects taken serially on each day of the week.

The table formed is:

Hence, statement 1 is sufficient to help us form this table.

4) Answer (a)

Here, the data in statement 1 is sufficient to answer the question.
Half an hour ago, the hour hand will be between 8 and 9. After half, the hour hand will be at 9 while minute hand will be on 12.
Therefore, option A is correct.

5) Answer (d)

The data in statement 1 gives us the relation that B is grandfather of F.
But even data from both the statements is insufficient to give the gender of F.
F can be grandson or granddaughter of B.
Hence correct option is D.

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