Staff Selection Commission Sub Inspector Exam
Question : The two parallel sides of a trapezium are 17 cm and 15 cm, respectively. If the height of the trapezium is 6 cm, then its area (in m2) is:
Option 1: 9.6
Option 2: 960
Option 3: 0.96
Option 4: 0.0096
Correct Answer: 0.0096
Solution : The area of a trapezium = $\frac{1}{2}$ × sum of lengths of parallel sides × height Substituting the given values, The area of the trapezium = $\frac{1}{2}$ × (17 + 15) × 6 = 96 cm2 We know that, 1 m2 = 10,000
Question : Determine the LCM of two numbers if their HCF is 12 and their ratio is 13 : 15.
Option 1: 1780
Option 2: 2450
Option 3: 1890
Option 4: 2340
Correct Answer: 2340
Solution : HCF of two numbers = 12 Ratio of two numbers = 13 : 15 Let $13x$ and $15x$ be the two numbers. HCF of $13x$ and $15x = x$ $\therefore x =12$ LCM of $13x$ and $15x = 13×15×x = 13×15×12 = 2340$ Hence, the
Question : What is the chemical symbol of Arsenic?
Option 1: Ac
Option 2: An
Option 3: As
Option 4: Ar
Correct Answer: As
Solution : The correct option is As.
The chemical symbol of Arsenic is As. A metalloid in Group 15 of the periodic table has atomic number 33. Arsenic is known for its toxic properties and various allotropes. It is used in certain alloys and technologies
Question : Directions: In the following question, select the word that cannot be formed using the letters of the given word. GOSSIPING
Option 1: SOAP
Option 2: PING
Option 3: GOING
Option 4: GOSSIP
Correct Answer: SOAP
Solution : Given: GOSSIPING
Now, let's compare all the option words with the word GOSSIPING – First option: SOAP; A is not present in the word GOSSIPING. Therefore, all the letters of SOAP are not present in the word GOSSIPING. Second option: PING; All the letters of
Question : Directions: In the following question, two statements are given, followed by three conclusions: I, II, and III. You have to consider the two statements to be true, even if they seem to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follow from the given statements. Statements: I. Some beautiful are intelligent. II. All intelligent are daughter. Conclusions: (I) Some intelligent are beautiful. (II) Some daughters are intelligent. (III) Some beautiful are daughters.
Option 1: Only conclusions I and II follow
Option 2: Only conclusion I and III follow
Option 3: Only conclusions II and III follow
Option 4: All conclusions follow
Correct Answer: All conclusions follow
Solution : The possible Venn diagram for the given statements –
Let's analyse the conclusions – Conclusion (I): Some intelligent are beautiful – According to the Venn diagram, the circle of intelligent and the circle of beautiful intersect and have a common area between them.
Question : Directions: In each of the following questions, choose the correct alternative that will improve the part of the sentence given in quotes.
The gas "is being seeping" out of the rocks.
Option 1: 1
Option 2: 2
Option 3: 3
Option 4: 4
Correct Answer: 1
Solution : The correct choice is the first option.
Question : If $x= 19$ and $y= 18$, then the value of $\frac{x^{2}+y^{2}+xy}{x^{3}-y^{3}}$ is:
Option 2: 37
Option 3: 324
Option 4: 361
Solution : Given: $x = 19$ and $y= 18$ Since, $x^{3}-y^{3} = (x-y)(x^{2}+y^{2}+xy)$ $\therefore\frac{x^{2}+y^{2}+xy}{x^{3}-y^{3}}=\frac{x^{2}+y^{2}+xy}{ (x-y)(x^{2}+y^{2}+xy)}=\frac{1}{x-y}=\frac{1}{19-18}= 1$ Hence, the correct answer is 1.
Question : Select the most appropriate one-word substitution for the given group of words. Holding an office without receiving a pay
Option 1: charity
Option 2: honorary
Option 3: startup
Option 4: freelance
Correct Answer: honorary
Solution : The correct choice is the second option.
Explanation: The term honorary is specifically used to describe a situation where someone holds a position, title, or office without receiving payment or remuneration for their services. It signifies that the individual is serving in an honorary capacity
Question : Directions: Select the correct mirror image of the given figure when the mirror is placed at line MN as shown.
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : As per the mirror image properties, closer things appear closer to the mirror in the reflection. Here, according to the information provided, the mirror is placed on the right side of the figure (on line MN). So, the left side of the reflected image will appear
Question : Select the option that can substitute the bracketed word segment correctly and complete the following sentence meaningfully. Lots of kids (was visualized) crossing the road when the bus arrived.
Option 1: were seen
Option 2: have been seen
Option 3: are seen
Option 4: was seen
Correct Answer: were seen
Solution : The correct answer is the first option.
Explanation: The correct option is "were seen" because it maintains subject-verb agreement. In the sentence, the subject "lots of kids" is plural, so the verb should also be in the plural form, which is "were" in this
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