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CSIR ASO/SO (Reasoning): Memory Based Test (Held on: 5th Feb 2024) (Previous Year Paper)

25 questions · 20 minutes · with answers · free

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General Intelligence, Reasoning and Mental Ability (25 questions)

1

In the following question, select the related number from the given alternatives.

8 : 81 : : ? : 64

  1. ((a))

    3

  2. ((b))

    8

  3. ((c))

    7

  4. ((d))

    9

Show Answer
Answer: ((c))

7

The pattern followed here is:

Logic: (1st number + 1)2 = 2nd number.

So, 8 : 81

→ (8 + 1)2 = 92 = 81.

Similarly, ? : 64

→ (7 + 1)2 = 82 = 64.

Hence, the correct answer is "Option 3".

2

Which of the following terms will replace the question mark (?) in the given series?

ALW, GEY, MXA, SQC, YJE, ?

  1. ((a))

    ECG

  2. ((b))

    DBI

  3. ((c))

    DCH

  4. ((d))

    EBH

Show Answer
Answer: ((a))

ECG

The logic followed here is :-

Hence, the correct answer is "ECG".

3

Five friends A, B, C, D and E study in the same college. In age, E is older than only A and B. D is younger than only C. A is not the youngest. How many friends are older than A?

  1. ((a))

    4

  2. ((b))

    2

  3. ((c))

    3

  4. ((d))

    1

Show Answer
Answer: ((c))

3

The logic followed here is:

1) E is older than only A and B

⇒ E > A and B

2) D is younger than only C

⇒ C > D > E > A and B

3) A is not the youngest.

So, the correct order will be ⇒ C > D > E > A > B

So, there are 3 persons (C, D, and E) older than A.

Hence, "option 3" is the correct answer.

4

Which of the following terms will replace the question mark (?) in the given series?

MPT, PRU, STV, VVW,?

  1. ((a))

    YWX

  2. ((b))

    YXW

  3. ((c))

    YXX

  4. ((d))

    ZXW

Show Answer
Answer: ((c))

YXX

Given:

MPT, PRU, STV, VVW,?

Logic: Addition of (3), (2) and (1) in the position value of the first, second and third letter.

Here, 'YXX' is the next term.

Hence, the correct answer is "Option (3)".

5

Two Statements are given followed by two conclusions numbered I and II. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follow(s) from the statements.

Statements:

All tables are strong.

No strong is weak.

Conclusions:

I. No tables are weak.

II. Some weak are tables.

  1. ((a))

    Only conclusion II follows

  2. ((b))

    Both conclusions I and II follow

  3. ((c))

    Neither conclusion I nor II follows

  4. ((d))

    Only conclusion I follows

Show Answer
Answer: ((d))

Only conclusion I follows

Given Statements:

All tables are strong.

No strong is weak.

The least possible Venn diagram for the given statement is:

Conclusions:

I. No tables are weak - True (Because, All the tables are strong and no strong is weak, so no tables are weak).

II. Some weak are tables - False (Because, All the tables are strong and no strong is weak, so no tables are weak).

So, Only conclusion I follows.

Hence, the correct answer is "Option 4".

6

In a certain code language, 'WODMF' is written as 'ZRDKD'. How will 'EIDMC' be written in that language?

  1. ((a))

    HDLAK

  2. ((b))

    HDLKA

  3. ((c))

    HLDKA

  4. ((d))

    HALDA

Show Answer
Answer: ((c))

HLDKA

The logic followed here is:

For, ‘WODMF' is written as 'ZRDKD’,

Similarly, for 'EIDMC'

So, 'EIDMC' will be written as 'HLDKA'.

Hence, the correct answer is "Option 3".

7

​'Explicit' is related to 'open' in the same way as 'confidential' is to '______'.

  1. ((a))

    Clean

  2. ((b))

    Free

  3. ((c))

    Indirectly

  4. ((d))

    Secret

Show Answer
Answer: ((d))

Secret

Logic : Term : Synonym

  • Explicit is a synonym of open.

Similarly,

  • Confidential is a synonym of secret.

Hence, "Secret" is the correct answer.

Additional Information

  1. Clean → Synonyms are neat, tidy, pure etc.
  2. Free → Synonyms are liberated, open, independent etc.
  3. Indirectly → Synonyms are implicitly, not directly, subtly etc.
  4. Secret → Synonyms are confidential, hidden, private etc.
8

Which of the following letter-clusters will replace the question mark (?) in the given series to make it logically complete?

FAN 15, KFS 20, PKX 25, UPC 30, ?

  1. ((a))

    YSL 40

  2. ((b))

    YLS 45

  3. ((c))

    ZVI 35

  4. ((d))

    ZUH 35

Show Answer
Answer: ((d))

ZUH 35

The pattern followed here is:

Thus, the pattern which logically completes the series is ZUH 35.

Hence, the correct answer is Option (4).

9

Select the number from among the given options that can replace the question mark (?) in the following series.

26, 31, 29, 34, 32, ?

  1. ((a))

    39

  2. ((b))

    37

  3. ((c))

    34

  4. ((d))

    30

Show Answer
Answer: ((b))

37

The pattern followed here is:

Hence, the correct answer is "37".

10

In a certain code language,

‘A + B’ means ‘A is the brother of B’,

‘A – B’ means ‘A is the mother of B’,

‘A × B’ means ‘A is the son of B’ and

‘A ÷ B’ means ‘A is the sister of B’.

If C + D – L ÷ P × Q × V, then which of the following statements is NOT correct?

  1. ((a))

    C is P’s father’s brother.

  2. ((b))

    L is Q’s daughter.

  3. ((c))

    D is V’s son’s wife.

  4. ((d))

    D is P’s mother.

Show Answer
Answer: ((a))

C is P’s father’s brother.

Family Chart:

Decoding the Symbols:

Symbol+-×÷
MeaningBrotherMotherSonSister

 

Given: C + D – L ÷ P × Q × V

It means: C is the Brother of D, D is the Mother of L, L is the Sister of P, P is the Son of Q, Q is the Son of V.

Option 1: C is P’s father’s brother - False (C is P's mother Brother).

Option 2: L is Q’s daughter - True

Option 3: D is V’s son’s wife - True

Option 4: D is P’s mother - True

Hence, the correct answer is "Option 1".

11

Which of the following numbers will replace the question mark (?) in the given series?

33, 80, 108, ?, 183, 230, 258

  1. ((a))

    160

  2. ((b))

    155

  3. ((c))

    143

  4. ((d))

    138

Show Answer
Answer: ((b))

155

The logic followed here is:

Hence, '155' is the correct answer.

12

Select the option figure in which the given figure is embedded. (rotation is NOT allowed)

  1. ((a))

  2. ((b))

  3. ((c))

  4. ((d))

Show Answer
Answer: ((a))

The image embedded in given figure is as shown below:

Hence, "Option 1" is the correct answer.

13

Choose the picture which is different from the others.

  1. ((a))

    (1)

  2. ((b))

    (2)

  3. ((c))

    (3)

  4. ((d))

    (4)

Show Answer
Answer: ((c))

(3)

The logic followed here is:

Hence, the correct answer is "Option 3".

14

Identify the figure given in the options which when put in place of the question mark (?) will logically complete the series.

  1. ((a))

  2. ((b))

  3. ((c))

  4. ((d))

Show Answer
Answer: ((a))

The logic followed here is:

Logic: The symbols are getting shifting upwards and downwards with increasing and decreasing order.

Hence, the correct answer is "Option 1".

15

Three positions of a dice are given below. What will come on the face opposite to the face containing '9' on it?

  1. ((a))

  2. ((b))

    7

  3. ((c))

    2

  4. ((d))

    8

Show Answer
Answer: ((a))

The pattern followed here is:

Given:

From dice number (1) and (2).

Here, @ is common in both the dice and rotated in clockwise direction from the common face.

Opposite faces:

⇒ # ⇔ 9

⇒ 8 ⇔ 7

Clearly, # is the opposite of 9.

Hence, the correct answer is "#".

16

What will be written in the place of question mark in the given series? 

A1C3M13I9?16

  1. ((a))

    N

  2. ((b))

    O

  3. ((c))

    M

  4. ((d))

    P

Show Answer
Answer: ((d))

P

The positional values of the alphabets are as follows:

The logic followed here is as follows:

Logic: The positional values of letters are written next to the letter in the given series.

So missing term in the series will 'P' which positional value is 16.

Hence the correct answer is "P".

17

In a certain code language, 'ACCENT' is coded as ‘CCATNE'. What is the code for ‘VENDOR' in that code language? 

  1. ((a))

    VENROD

  2. ((b))

    NVEDOR

  3. ((c))

    NEVROD

  4. ((d))

    NEVORD

Show Answer
Answer: ((c))

NEVROD

The logic followed here is:

'ACCENT' is coded as ‘CCATNE',

Similarly, for 'VENDOR'

So, 'VENDOR' will be coded as 'NEVROD'.

Hence, the correct answer is "Option 3".

18

Select the option that represents the letters that, when placed from left to right in the blanks below, will complete the letter series.

C _ R C _ R _ A R _ A _ C A _

  1. ((a))

    R A C A C A

  2. ((b))

    R A C A A C

  3. ((c))

    A C R A C R

  4. ((d))

    A A C C R R

Show Answer
Answer: ((d))

A A C C R R

Given : C _ R C _ R _ A R _ A _ C A _    

By checking options :

  1. R A C A C A → C R R C A R C A R A A C C A A → (It doesn't Follows the pattern)
  2. R A C A A C → C R R C A R C A R A A R C A C → (It doesn't Follows the pattern)
  3. A C R A C R → C A R C C R R A R A A C C A R → (It doesn't Follows the pattern)
  4. A A C C R R → C A R C A R C A R C A R C A R → (It follows the pattern of : CAR - CAR - CAR - CAR - CAR)

⇒Option - (4) gives the pattern of "C A R C A R C A R C A R C A R"

Hence, "A A C C R R" is the correct answer.

19

Select the number from among the given options that can replace the question mark (?) in the following series.

15, 22, 31, 42, 55, ?

  1. ((a))

    70

  2. ((b))

    71

  3. ((c))

    72

  4. ((d))

    68

Show Answer
Answer: ((a))

70

The pattern followed here is:-

Hence, the correct answer is "70".

20

Shruti departs from her home and walks 26 m towards the east. She then turns left and walks 18 m. She turns right and walks 34 m. She takes a right turn again and walks 30 m. She then takes a left turn and walks 10 m. She takes a final left turn and walks 12 m to stop at Point X. How far and in which direction is her home from Point X? (Assume that all the turns are 90° turns only.)

  1. ((a))

    65 m east 

  2. ((b))

    55 m east

  3. ((c))

    70 m west

  4. ((d))

    60 m west 

Show Answer
Answer: ((c))

70 m west

According to the given information,

1) Shruti departs from her home and walks 26 m towards the east.

2) She then turns left and walks 18 m.

3) She turns right and walks 34 m.

4) She takes a right turn again and walks 30 m.

5) She then takes a left turn and walks 10 m.

  1. She takes a final left turn and walks 12 m to stop at Point X.

Here, we can see that her home is 70 m in West direction from point X.

Hence, the correct answer is "70 m west".

21

Four letter-clusters have been given out of which three are alike in some manner and one is different. Select the one that is different.

  1. ((a))

    LJI

  2. ((b))

    GDA

  3. ((c))

    NLK

  4. ((d))

    TRQ

Show Answer
Answer: ((b))

GDA

The position of the English alphabet letters is given below:

Let's check each option one by one:

Option 1) LJI

Option 2) GDA

Option 3) NLK

Option 4) TRQ

Hence, the correct answer is "GDA".

22

What is the total number of triangles in the given figure?

  1. ((a))

    6

  2. ((b))

    8

  3. ((c))

    10

  4. ((d))

    12

Show Answer
Answer: ((c))

10

There are total 10 triangle in the given figure.

Hence, the correct answer is "10".

23

Select the option that is related to the third word in the same way as the second word is related to the first word. (The words must be considered as meaningful English words and must not be related to each other based on the number of letters/number of consonants/vowels in the word)

Anklet : Ankle :: Bracelet : ?

  1. ((a))

    Ear

  2. ((b))

    Wrist

  3. ((c))

    Waist

  4. ((d))

    Neck

Show Answer
Answer: ((b))

Wrist

The logic followed here is:

Logic: First one is wore on the second one.

  • Anklet : Ankle → An anklet is wore on ankle.

Similarly,

  • Bracelet → A bracelet is wore on wrist.

Hence, 'Wrist' is the correct answer.

24

Which of the following answer figures is the water image of the given figure?

  1. ((a))

  2. ((b))

  3. ((c))

  4. ((d))

Show Answer
Answer: ((a))

The water image will be:

Hence, the correct answer is 'Option 1'.

25

If ‘+' means ‘subtraction’, ‘-’ means ‘multiplication’, ‘÷’ means ‘addition’ and ‘×’ means ‘division’, then what is the value of the following expression?

3 - 21 + 153 × 17 ÷ 26

  1. ((a))

    84

  2. ((b))

    80

  3. ((c))

    76

  4. ((d))

    58

Show Answer
Answer: ((b))

80

Here, we use the BODMAS table given below:

Given:

⇒ 3 - 21 + 153 × 17 ÷ 26

As per the given data:

SymbolMeans
+Subtraction
-Multiplication
÷Addition
×Division

After changing the sign as per the table:

⇒ 3 × 21 - 153 ÷ 17 + 26

Apply BODMAS rule:

⇒ 3 × 21 - 9 + 26

⇒ 63 - 9 + 26

⇒ 89 - 9 = 80

Here, the value of the expression is '80'.

Hence, the correct answer is "Option (2)".

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