Staff Selection Commission Sub Inspector Exam
Question : Directions: Which number will replace the question mark (?) in the following series? 24, 25, 33, 60, ?, 249
Option 1: 121
Option 2: 147
Option 3: 124
Option 4: 133
Correct Answer: 124
Solution : Given: 24, 25, 33, 60, ?, 249
Add the cube of natural numbers starting from 1 to get the required missing number – 24 + 13 = 25; 25 + 23 = 33; 33 + 33 = 60; 60 + 43
Question : In the context of the Sri Lankan Civil War, what does the first ‘T’ in LTTE stand for?
Option 1: Tigers
Option 2: Tamil
Option 3: Tarantulas
Option 4: Triumph
Correct Answer: Tigers
Solution : The correct answer is Tigers
One of the longest-running civil conflicts in Asia is the one raging between the government of Sri Lanka and the Liberation Tigers of Tamil Eelam (LTTE), which has lasted for almost thirty years. The LTTE, often known as the Tamil
Question : P and Q together can do a work in 12 days. P alone can do the same work in 36 days. In how many days can Q alone complete two-thirds part of the same work?
Option 1: 12
Option 2: 15
Option 3: 18
Option 4: 21
Correct Answer: 12
Solution : Time taken by P and Q to do the work = 12 days (P and Q)'s 1 day's work = $\frac{1}{12}$ P alone can do the work in 36 days P's 1 day's work = $\frac{1}{36}$ Q's 1 day's work = $\frac{1}{12} - \frac{1}{36}=\frac{2}{36}=\frac{1}{18}$ ⇒
Question : The ability of the eye to see in the dark is due to the production of a purple pigment known as
Option 1: Carotene
Option 2: Rhodopsin
Option 3: Iodopsin
Option 4: Retinene
Correct Answer: Rhodopsin
Solution : The answer is Rhodopsin.
Rhodopsin is a pigment present in the cells of the retina that helps with vision in low-light conditions. Rods and cones are the photoreceptor cells that help in the vision and perception of light. The rods help in night vision and
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".
In the back side (1) / of our house (2) / we have a rock garden. (3) / No error (4)
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
Correct Answer: (1)
Solution : The error lies in the first part of the sentence.
In this context, at the back of our house is the correct way to refer to the rear area of the house. The phrase the back side of our house is not correct, as
Question : Comprehension: Read the given passage carefully and answer the questions that follow.
The world of social media is a strange and wondrous place. It's a world where you can connect with people from all over the globe, share your thoughts and opinions, and maybe even go viral if you're lucky. But let's be real, it's also a world filled with endless cat videos, oversharing, and drama. One of the most interesting things about social media is the way it's changed the way we communicate. We've gone from long, thoughtful emails to quick, abbreviated messages with emojis and acronyms. And don't even get me started on the whole hashtag phenomenon. It's like we're all speaking a different language now. But there are also some downsides to this constant connection. It's easy to get sucked into the world of social media and forget about the real world around us. We're so busy scrolling through our feeds that we forget to enjoy the little moments in life. And let's not forget about the pressure to present the perfect life online. It's like we're all in a competition to see who can be the most popular, the most successful, the most enviable. Despite all of this, I have to admit, I'm still a fan of social media. It's a great way to stay connected with friends and family, and I've even made some new friends through various online communities. Plus, let's face it, sometimes you just need a good laugh at a ridiculous meme. Question: Which of the following would be the most appropriate title for this passage?
Option 1: The Joys and Sorrows of Social Media
Option 2: The Benefits of Social Media
Option 3: The Dark Side of Social Media
Option 4: Mastering the Art of Social Media
Correct Answer: The Joys and Sorrows of Social Media
Solution : The correct choice is the first option.
The title, "The Joys and Sorrows of Social Media." reflects the dual nature of social media as discussed in the passage. It captures the positive aspects, such as connecting with people
Question : Which of the following is the formula of barium peroxide?
Option 1: Ba2O2
Option 2: BaSO4
Option 3: BaO
Option 4: BaO2
Correct Answer: BaO2
Solution : The correct option is BaO2.
Barium peroxide (BaO2) is a chemical compound containing barium and oxygen. It is a white, crystalline solid with applications in pyrotechnics and bleaching. It releases oxygen when heated, making it useful in certain chemical processes.
Question : Directions: A student is caught cheating on her test. What would you do in this situation?
Option 1: Warn her and let her off
Option 2: Warn her and give her counselling
Option 3: Tell her parents
Option 4: Put up her name on the board
Correct Answer: Warn her and give her counselling
Solution : Given: A student is caught cheating on her test.
Let's check each option – First option: Warn her and let her off. This is not the correct action because only a warning is not sufficient it requires proper guidance so
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 fourth option is correct.
Question : Directions: Select the option in which the numbers share the same relationship as that shared by the given pair of numbers. 76 : 171
Option 1: 28 : 63
Option 2: 24 : 39
Option 3: 62 : 135
Option 4: 52 : 115
Correct Answer: 28 : 63
Solution : Given: 76 : 171
Divide the second term by the first term to obtain 2.25. Here in, 76 : 171→171 ÷ 76 = 2.25
Let's check the options – First option: 28 : 63→63 ÷ 28 = 2.25 Second option: 24 : 39→39
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