Staff Selection Commission Sub Inspector Exam
Question : Directions: Select the set in which the numbers are related in the same way as the numbers of the following sets. (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits. Example 13 – operations on 13 such as adding /subtracting /multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.) (23, 6, 35) (13, 5, 23)
Option 1: (24, 5, 33)
Option 2: (16, 4, 20)
Option 3: (25, 8, 41)
Option 4: (13, 7, 28)
Correct Answer: (25, 8, 41)
Solution : Given: (23, 6, 35) (13, 5, 23)
In the given set of numbers, multiply 2 by the second number and then add the first number to get the third number. (23, 6, 35)→6 × 2 = 12 + 23 = 35 (13, 5, 23)→5 × 2 = 10 + 13 = 23 Let's check each option – First option: (24, 5, 33)→5 × 2 = 10; 10 + 24 = 34 ≠ 33 Second option: (16, 4, 20)→4 × 2 = 8; 8 + 16 = 24 ≠ 20 Third option: (25, 8, 41)→8 × 2 = 16; 16 + 25 = 41 Fourth option: (13, 7, 28)→7 × 2 = 14; 14 + 13 = 27 ≠ 28
So, (25, 8, 41) follows the same pattern. Hence, the third option is correct.
Question : The ______ era is also known as the "age of mammals".
Option 1: Neozoic
Option 2: Palaeozoic
Option 3: Cenozoic
Option 4: Mesozoic
Correct Answer: Cenozoic
Solution : The correct answer is Cenozoic.
The Cenozoic era is also known as the "age of mammals". The Cenozoic era began approximately 66 million years ago and continues to the present day. It is characterised by the dominance and diversification of mammalian life forms, including the evolution of various orders and families of mammals that exist today.
Question : If $k\left(\tan 45^{\circ} \sin 60^{\circ}\right)=\cos 60^{\circ} \cot 30^{\circ}$, then the value of k is:
Option 1: $1$
Option 2: $2$
Option 3: $\frac{1}{\sqrt{3}}$
Option 4: $\sqrt{3}$
Correct Answer: $1$
Solution : The given equation is $k\left(\tan 45^{\circ} \sin 60^{\circ}\right)=\cos 60^{\circ} \cot 30^{\circ}$. $⇒k\left(1 \times \frac{\sqrt{3}}{2}\right) = \frac{1}{2} \times \sqrt{3}$ $⇒k = \frac{\frac{1}{2} \times \sqrt{3}}{\frac{\sqrt{3}}{2}} = \frac{1}{2} \times \frac{2}{\sqrt{3}} \times \sqrt{3} = 1$ Hence, the correct answer is $1$.
Question : Select the correct meaning of the idiom in bold and italics.
Look, the devil is beating his wife. Do you think we'll see a rainbow?
Option 1: One who presents a counter argument
Option 2: If you have nothing to do, you are likely to do some mischief
Option 3: The sun is shining while it rains
Option 4: When someone comes in unexpectedly while being talked about
Correct Answer: The sun is shining while it rains
Solution : The third option is the correct answer.
This idiom is a regional expression used to describe a weather phenomenon where it is raining while the sun is shining. The phrase, the devil is beating his wife is a colloquial way of referring to this specific weather condition. It's a folk saying that doesn't have a literal meaning but is used to describe the simultaneous occurrence of rain and sunshine.
Therefore, the correct answer is: The sun is shining while it rains.
Question : A man has to be at a certain place at a certain time. He finds that he shall be 20 minutes late if he walks at 3 km/hr speed and 10 minutes earlier if he walks at a speed of 4 km/hr. The distance he has to walk is:
Option 1: 24 km
Option 2: 12.5 km
Option 3: 10 km
Option 4: 6 km
Correct Answer: 6 km
Solution : Let $x$ be the required distance. Time taken in the first case = $\frac{x}{3}$ hours Time taken in the second case = $\frac{x}{4}$ hours Time difference = $\frac{x}{3} - \frac{x}{4}$ hours So, $\frac{x}{3} - \frac{x}{4}$ = $\frac{(20+10)}{60}$ ⇒ $\frac{x}{12}$ = $\frac{1}{2}$ ⇒ $x$ = 6 km Hence, the correct answer is 6 km.
Question : Select the most appropriate meaning of the given idiom. Hand and glove
Option 1: very intimate terms
Option 2: Under all conditions
Option 3: Decided
Option 4: Oppressive
Correct Answer: very intimate terms
Solution : The correct choice will be the first option.
The idiom hand in glove means to be in a very close or friendly association or partnership with someone. It suggests a relationship where individuals work closely together, cooperate seamlessly or share a strong connection.
For example, if two colleagues are said to be hand in glove, it implies that they work closely together, coordinating their efforts seamlessly.
Therefore, the answer will be very intimate terms.
Question : Whose autobiography is ‘Playing It My Way’?
Option 1: Sachin Tendulkar
Option 2: Yuvraj Singh
Option 3: Sunil Gavaskar
Option 4: Saina Nehwal
Correct Answer: Sachin Tendulkar
Solution : The correct option is Sachin Tendulkar
"Playing It My Way" is the autobiography of the former Indian cricketer Sachin Tendulkar. The book, co-authored with Boria Majumdar, was published in 2014 and provides insights into Tendulkar's life, cricket career, and personal experiences. Tendulkar shares anecdotes and behind-the-scenes stories from his cricketing career in the autobiography.
Question : Directions: In the following question, some parts of the sentence may have some errors. Find out which part of the sentence has an error and select the appropriate option. If the sentence is free from error, select "No error".
When one hears of the incident (1) / about the plane crash (2) / he feels very sorry. (3) / No error (4)
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
Correct Answer: (3)
Solution : The error lies in the third part of the sentence.
When one is used in a sentence, it is always followed by the indefinite pronoun one to make the sentence grammatically accurate. Thus, he should be replaced with one.
Therefore, the correct sentence is: "When one hears of the incident about the plane crash, one feels very sorry."
Question : "Euderma maculatum" is the name given to spotted ______.
Option 1: bats
Option 2: eagles
Option 3: rats
Option 4: foxes
Correct Answer: bats
Solution : The correct option is bats.
The scientific name for the spotted bat is "Euderma maculatum". The spotted bat is a species found in North America that is distinguished by the big white dots on its black fur. Because of its distinctive colouring, it is among the most recognisable bat species. The western regions of North America, extending from southern Canada to Mexico, are home to the species.
Question : Directions: How many quadrilaterals are there in the given figure?
Option 1: 5
Option 2: 6
Option 3: 8
Option 4: 10
Correct Answer: 6
Solution : The given figure can be labeled as shown below –
There are 6 quadrilaterals in the above figure. They are ADFE, FEBC, ADCE, BCFA, AFCE, ABCD.
Hence, the second option is correct.
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