PYST 1: IB Security Assistant & MTS Official Paper - Logical Ability & Reasoning (Held On: 23 March, 2023 Shift 1) (Previous Year Paper)

The logic followed here is:

Asha is sitting at 532 from the right and 462 from the left end.

Total number of person in that row = Rank of Asha from Right + Rank of Asha from Left - 1.

= 532 + 462 - 1

= 994 - 1

= 993.

Hence, the correct answer is 'Option 4'.

The logic followed here is:

The Rank of Soumya from the left end = 17^th.

The Rank of Kiran from the right end = 37^th.

The Rank of Soumya from the right end = Rank of Kiran from the right end - 13^th.

37 - 13 = 24^th.

Total number of person in the row = Rank of Soumya from the left end + Rank of Soumya from the right end - 1.

= 17 + 24 - 1 = 40.

Hence, the correct answer is 'Option 2'.

Statements: D > T ≤ B > A, P ≤ R > S ≠ D

After combining the statements, we get: P ≤ R > S ≠ D > T ≤ B > A

Conclusions: 

1. P ≠ D → This does not follow as (P ≤ R > S ≠ D, there is no definite relation can be forms between P and D).

2. T = A → This does not follow as (T ≤ B > A, there is no definite relation can be forms between T and A).

Thus, None of the conclusion follow.

Hence, the correct answer is 'Option 1'.

Given: Seven members (A, B, C, D, E, F, G) are sitting in a row facing north.

Only two people sit to the left of E. F sits to the immediate right of E.

G sits at the extreme left end of the row.

C sits to the immediate left of B. D is not sitting at the extreme end of the row.

Neither A nor D is the immediate neighbour of the person placed exactly in the middle of the row.

A is sitting at the extreme right end of the row.

Hence, the correct answer is 'Option 4'.

The position and positional values of English Alphabets are as follows:

The logic followed here is:

For, 'BLOCK' is written as 'ELUCT'.

For, 'FLANK' is written as 'ILGNT'.

Similarly, 'WHILE' will be:

Thus, 'WHILE' can be written as 'ZHOLN'.

Hence, the correct answer is 'Option 2'.

Given Equation: 181 * 7 * 9 * 18 * 9 = 120

BODMAS Rule:

Let's check each option one by one:

Option 1) ÷ × + −

Given: 181 * 7 * 9 * 18 * 9 = 120

After replacing * signs we get;

⇒ 181 ÷ 7 × 9 + 18 - 9 = 120

⇒ 25.8 × 9 + 18 - 9 = 120

⇒ 232.2 + 18 - 9 = 120

⇒ 250.2 - 9 = 241.2

⇒ 241.2 ≠ 120.

Option 2) − × + ÷ 

Given: 181 * 7 * 9 * 18 * 9 = 120

After replacing * signs we get;

⇒ 181 - 7 × 9 + 18 ÷ 9 = 120

⇒ 181 - 7 × 9 + 2 = 120

⇒ 181 + 2 - 63 = 120

⇒ 183 - 63 = 120

⇒ 120 = 120.

Option 3) + × ÷ −

Given: 181 * 7 * 9 * 18 * 9 = 120

After replacing * signs we get;

⇒ 181 + 7 × 9  ÷ 18 - 9 = 120

⇒ 181 + 7 × 0.5 - 9 = 120

⇒ 181 + 3.5 - 9 = 120

⇒ 184.5 - 9 = 175.5

⇒ 175.5  ≠ 120.

Option 4) × + − ÷

Given: 181 * 7 * 9 * 18 * 9 = 120

After replacing * signs we get;

⇒ 181 × 7 + 9 - 18 ÷  9 = 120

⇒ 181 × 7 + 9 - 2 = 120

⇒ 1267 + 9 - 2 = 120

⇒ 1276 - 2 = 120

⇒ 1276 ≠ 120.

Hence, the correct answer is 'Option 2'.

The least possible Venn diagram for the given statement is:

Conclusions:

I. Some books are yellow → Does not follow (As, there is no definite relation given between Books and Yellow, so it can be possible only).

II. Some purses are papers → Follows (The part of paper which also yellow is purse as it is given in statement that some paper are yellow).

Thus, only conclusion II follows.

Hence, the correct answer is 'Option 2'.

Given:

Diksha walks 20 m towards the south, turns left and walks 30 m, after which, she turns right and walks 30 m.

Again, She turns right and walks 30 m, after which, she takes a final right turn and walks 20 m.

The Distance between the Starting point and Final point is 30m.

Hence, the correct answer is 'Option 3'.

Family Chart:

Given:

Veer is the brother of Rohan and Hari. Rita is Hari’s mother and Ram is Rohan’s father.

So, Veer is the son of Ram.

Hence, the correct answer is 'Option 4'.

The logic followed here is:

So, 66 will complete the series.

Hence, the correct answer is 'Option 3'.

The logic followed here is:

1. Chisel: a tool with a sharp end that is used for cutting or shaping wood or stone.

2. Rake: a garden tool with a long handle and a row of metal teeth, used for collecting leaves or making the earth smooth.
3. Sickle: a tool with a short handle and a long, curved metal part with a sharp edge (a blade) that is used for cutting long grass, corn, etc.
4. Shovel: a tool used for picking up and moving earth, snow, sand, etc.

Here, Except "Chisel" all the three are tools used in garden. Chisel is used in cutting or shaping wood or stone.

Hence, the correct answer is 'Option 1'.

The position and positional value of English Alphabets are:

The logic followed here is:

For, ‘BUREAU’ is written as ‘RUBUAE’

For, ‘NUMBER’ is written as ‘MUNREB’

Similarly, 'DETECT' will be written as:

So, 'DETECT' will be written as 'TEDTCE'.

Hence, the correct answer is 'Option 2'.

The logic followed here is: (Number)³ - 1 = Terms of series.

Hence, the correct answer is 'Option 2'.

Given: Eight friends - A, B, C, D, E, F, G, H, sitting around a circular table, facing centre.

E sits second to the right of G.

Only three people sit between F and E.

B is immediate the neighbour of E but not D.

A sits second, to the right of B.

Case I:

Case II:

C sits third to the left of D.

H and C are not immediate neighbours of each other.

Case I:

Case II:

Case II, Contradicts H and C are not immediate neighbour of each other.

Hence, Case II becomes false.

So, the final arrangement is:

From Case I, G is sitting between D and H when counted from right of D.

Hence, the correct answer is 'Option 4'.

Given: 9 $ D 8 @ 7 H % Y 3 G 5 $ 9 % 8 # Q 6 R & P T & 6

Symbols in the following string which are exactly preceded by a letter but NOT followed by a number.

9 $ D 8 @ 7 H % Y 3 G 5 $ 9 % 8 # Q 6 R & P T & 6.

So, there are '2 Symbols' which are preceded by a letter but NOT followed by a number.

Hence, the correct answer is 'Option 1'.

Given: 8 W H 6 T 8 4 G 9 E R 6 K 5 L Q 7 U P 3

Letters which are followed by a number:

8 W H 6 T 8 4 G 9 E R 6 K 5 L Q 7 U P 3.

So, we can say the there are '7 letters' in the given string which are followed by number.

Hence, the correct answer is 'Option 1'.

The position and positional values of English Alphabets are as follows:

The logic followed here is:

Hence, the correct answer is 'Option 2'.

BODMAS Rule:

Given: 198.98 − (98.89 + 9.98) + 9 − 1.89 + 9.09 = ? 

Taking approximate values,

⇒199 - (99 + 10) + 9 - 2 + 9 = ?

⇒199 - 109 + 9 - 2 + 9 = ?

Arranging the equation: 

⇒199 + 9 + 9 - 109 - 2 = ?

⇒217 - 109 -2 = ?

⇒108 - 2 = 106.

Hence, the correct answer is 'Option 2'.

The logic followed here is:

1. Female Peacock: are able to fly.
2. Sparrow: are able to fly high.

3.Hen: are able fly short distance.

4. Ostrich: are unable to fly, they can run fast as they have long legs.

All are flying birds except 'Ostrich'.

Hence, the correct answer is 'Option 4'.

The logic followed here is:

Logic: Words are synonyms of each other.

• Stop : Cease → Stop is the synonym of Cease.

Similarly,

• Start : ? → Start is the synonym of Commence.

Hence, the correct answer is 'Option 4'.