Staff Selection Commission Sub Inspector Exam
Question : Directions: A paper is folded and cut as shown below. How will it appear when unfolded?
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : When the given folded paper is unfolded, it will look like –
Hence, the first option is correct.
Question : Directions: In the question, a sentence is given with a blank to be filled in with an appropriate word. Four alternatives are suggested for each question. Choose the correct alternative out of the four alternatives. She made her stepson her ____ to her large fortune.
Option 1: hare
Option 2: heir
Option 3: hair
Option 4: here
Correct Answer: heir
Solution : The correct answer is the second option as heir means a person legally entitled to the property or rank of another on that person's death.
The meanings of the other options are as follows:
Hair: It denotes thin, thread-like strands that grow on the skin
Question : Directions: Four words have been given out of which three are alike in some manner, while one is different. Choose the odd one.
Option 1: Zinc
Option 2: Aluminium
Option 3: Steel
Option 4: Tin
Correct Answer: Steel
Solution : Let's check each option –
First option: Zinc; It is a metal. Second option: Aluminium; It is a metal. Third option: Steel; It is an alloy made up of iron and carbon so, it is not a pure metal but rather a metal alloy. Fourth
Question : What is an isthmus?
Option 1: A water body separating two land masses
Option 2: A narrow strip of land separating two water bodies
Option 3: Deep penetration of a water body in land
Option 4: None of these
Correct Answer: A narrow strip of land separating two water bodies
Solution : The answer is A narrow strip of land separating two water bodies.
An isthmus is a narrow, elongated piece of land that connects two larger land masses and separates two bodies of water. It is situated
Question : Direction: The given pie chart shows the runs scored by 5 players in a match.
Runs scored by Pujara is what % of runs scored by all these 5 players?
Option 1: 25%
Option 2: 30%
Option 3: 20%
Option 4: 23%
Correct Answer: 20%
Solution : Runs scored by Pujara = 76 Runs scored by all five = 76 + 68 + 52 + 102 + 82 = 380 Percentage of Pujara to all five = $\frac{\text{Runs by Pujara}}{\text{Runs by all five}}×100$ = $\frac{76}{380}×100 = 20$% Hence, the correct answer is
Question : Adding Cl2 to benzene in the presence of AlCl3 is an example of:
Option 1: Elimination reaction
Option 2: Substitution reaction
Option 3: Addition reaction
Option 4: None of the options
Correct Answer: Substitution reaction
Solution : The correct option is Substitution reaction.
A substitution reaction is the addition of chlorine (Cl2) to benzene (C6H6) in the presence of aluminium chloride (AlCl3). This is referred to as electrophilic substitution. One or more
Question : If $x+y+z=13,x^2+y^2+z^2=133$ and $x^3+y^3+z^3=847$, then the value of $\sqrt[3]{x y z}$ is:
Option 1: $8$
Option 2: $7$
Option 3: $-9$
Option 4: $-6$
Correct Answer: $-6$
Solution : Given: $x+y+z=13,x^2+y^2+z^2=133$ and $x^3+y^3+z^3=847$ $(x+y+z)^2 = x^2+y^2+z^2+2(xy+yz+zx)$ ⇒ $13^2=133+2(xy+yz+zx)$ ⇒ $xy+yz+zx=\frac{169-133}{2}=\frac{36}{2}=18$ $x^3+y^3+z^3-3xyz = (x+y+z)(x^2+y^2+z^2-(xy+yz+zx))$ $⇒847-3xyz = 13 ×(133-18)$ $⇒-3xyz = 13×115 - 847 = 1495-847 =648 $ $⇒xyz = \frac{648}{-3} = -216$ $\therefore \sqrt[3]{xyz} = \sqrt[3]{-216} = -6$ Hence, the correct answer is $-6$.
Question : Directions: Arrange the given words in the sequence in which they occur in the dictionary. 1. Soul 2. Strain 3. Syrup 4. Sand 5. Strained
Option 1: 41253
Option 2: 42153
Option 3: 54312
Option 4: 45312
Correct Answer: 41253
Solution : Given: 1. Soul 2. Strain 3. Syrup 4. Sand 5. Strained
Step 1: Compare the first letter of each word. Since all the words start with the same letter S, then move to the next letter. Step 2: The second letter of each word
Question : Directions: Select the Venn diagram that represents the correct relationship between the following classes. Singers, Homo Sapiens, Cricketers
Solution : Based on the general information, Homo Sapiens is the scientific name of humans. So, both singers and cricketers are homo sapiens. So, two circles representing singers and cricketers will lie inside the circle that represents homo sapiens. Also, some cricketers can be singers and some singers
Question : If each side of a square is decreased by 17%, then by what percentage does its area decrease?
Option 2: 30.79%
Option 3: 31.11%
Option 4: 44.31%
Correct Answer: 31.11%
Solution : Let the side of the square be 100. After decrement of 17% = 83 Initial area = $(side)^2$ = $100^2$ = 10000 Area after decrement = $83^2$ = 6889 Difference in areas = 10000 – 6889 = 3111 Decrease in area (in percentage) = $\frac{\text{Decrease
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