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IBPS PO Prelims Reasoning (Day-12)

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Unknown circular

Direction (1-5): Study the following information carefully and answer the questions below.

A certain number of persons were sitting in a circular table and all are facing the centre. No two persons sit adjacent to each other as in English alphabetical order.

A sits 5th to the left of P. Q sits adjacent to A and third to the right of C. D neither sits adjacent to P nor A. As many persons sit between P and C is same as between Q and R where Q sits fourth to left of R. The person who sits immediate left of C is 2nd to the right of B. Three persons sit between B and E. D is 4th to the right of S. The number of persons sits between S who is adjacent to B and the one who sits immediate left of A is same as the number of persons sits between D and R.

1) How many known persons are there in the given circular arrangement?

A) 7

B) 8

C) 9

D) 10

E) 12

2) What is the position of E with respect to S?

A) Second to the left

B) Fifth to the left

C) Third to the right

D) Fourth to the left

E) None of these

3) How many known persons sit between S and P when counted from left of S?

A) Same as the number of persons sits between A and D

B) Same as the number of persons sits between P and B

C) Same as the number of persons sits between E and R

D) Same as the number of persons sits between R and S

E) None of the above.

4) Who among the following person is sitting 4th to the right of A?

The person who sits second to the left of S

The person who sits third to the right of C

The person who sits third to the left of D

The person who sits second to the left of E

The person who sits third to the left of S

5) Which of the following pair of persons does not belong to the group?

A) E, A

B) C, S

C) D, C

D) P, R

E) Q, S

Misc

6) When the digits, which are odd in the number ‘867597645’ are decreased by 1 and the remaining digits are increased by 1, then what is the sum of 2nd digit from the right end and 4th digit from the left end of the rearranged number?

A) 7

B) 9

C) 10

D) 8

E) None of these

Coding decoding

Direction (7-10): Answer the questions based on the information given below.

In a certain language,

‘Cops issue alert against cyber attack’ is coded as ‘cs at iu gt kt cb’

‘Cyber attack are very casual’ is coded as ‘cb kt ev er cu ’

‘Casual issue are dangerous’ is coded as ‘cu iu er gu’

‘Alert cops are dangerous’ is coded as ‘at cs gu er’

7) What is the code for ‘Against’ in the given language?

A) gu

B) gt

C) cb

D) at

E) Either (b) or (c)

8) What is the code for ‘Alert’ in the given language?

A) ev

B) at

C) cs

D) Either (b) or (c)

E) Either (a) or (b)

9) Which of the following word is coded as ‘kt’?

A) cyber

B) are

C) attack

D) Either (a) or (b)

E) Either (a) or (c)

10) Which of the following could be coded as ‘iu cb cu’?

A) Cops alert casual

B) Issue cyber attack

C) Issue attack casual

D) attack casual cops

E) None of these

Answers :

Directions (1-5):

Here we have statements,

A certain number of persons were sitting in a circular table and all are facing the centre.

A sits 5th to the left of P.

D neither sits adjacent to P nor A.

Q sits adjacent to A and third to the right of C. Here two possible cases are formed i.e., case 1 and case 2.

As many persons sit between P and C is same as between Q and R where Q sits fourth to left of R.

In this statement case 2 is violated because R cannot be placed 4th to the right of Q. Thus, case 1 is only possible.

The person who sits  to the immediate left of C is 2nd to the right of B.

No two persons sit adjacent to each other as in English alphabetical order.

 The number of persons sits between S who is adjacent to B and one who sitsimmediate left of A is same as the number of persons between D and R.

 Three persons sit between B and E.

Based on the given conditions we have the final arrangement as follows:

1) Answer: C

2) Answer: B

3) Answer: A

4) Answer: E

5) Answer: E

6) Answer: B

The given number is ‘867597645’

Odd digits decreased by 1

Remaining digits increased by 1

The new rearranged number is ‘976486754’

2nd digit from the right end is 5 and 4th digit from the left end is 4.

Required Sum = 5 + 4 = 9

Directions (7-10):

The final table is shown below:

7) Answer: B

8) Answer: D

9) Answer: E

10) Answer: C

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