Staff Selection Commission Sub Inspector Exam
Question : The cost of a pencil is $33\frac{1}{3}$% less than the cost price of a pen. If a man sells 4 pencils at the cost price of 5 pens, what is his profit percentage?
Option 1: 50
Option 2: 66.66
Option 3: 75
Option 4: 87.5
Correct Answer: 87.5
Solution : Let $x$ be the cost price of a pen. Cost price of a pencil $= x - 33\frac{1}{3}$% of $x$ = $x - \frac{1}{3}x = \frac{2}{3}x$ Cost price of 4 pencils = $4 × \frac{2}{3}x$ = $\frac{8}{3}x$ Selling price of 4 pencils = cost price
Question : Select the most appropriate one-word substitution of the given group of words. A pretence of having a virtuous character, moral or religious beliefs or principles, etc., that one does not really possess.
Option 1: Shrewdness
Option 2: Naivety
Option 3: Gullibility
Option 4: Hypocrisy
Correct Answer: Hypocrisy
Solution : The correct choice is the fourth option.
Hypocrisy is the act of pretending to have beliefs, virtues, or moral standards that one does not actually possess. This term fits the description of a facade of virtuous character or beliefs that is not genuinely held
Question : The number of different colleges in India in different years is given in the graph. The percent distribution of different colleges in years 1980 and 1990 are shown in the pie chart.
By what % are the medical colleges in 1980 is less than that in 1990?
Option 1: 25%
Option 2: 30%
Option 3: 32%
Option 4: 20%
Correct Answer: 25%
Solution : Number of colleges in 1980 = 20,000 Percentage of medical colleges in 1980 = 12% Number of medical colleges in 1980 = $\frac{12}{100}\times 20000$ = 2400 Number of colleges in 1990 = 40,000 Percentage of medical colleges in 1990 = 8% Number of medical colleges
Question : Which of the following statements about the ionosphere is not correct?
Option 1: It contains charged particles.
Option 2: It is ionised by solar and cosmic radiation.
Option 3: Radio waves transmitted from the earth are reflected back to the earth by this layer.
Option 4: It is located immediately above the stratopause.
Correct Answer: It is located immediately above the stratopause.
Solution : The correct option is It is located immediately above the stratopause.
The ionosphere is not specifically located above the stratopause. The ionosphere is a region of Earth's upper atmosphere, starting roughly at altitudes of 30 miles (48 kilometres) and
Question : Directions: In the given question, select the related letter from the given alternatives. BYW : DWU :: FUS : ?
Option 1: ESQ
Option 2: GST
Option 3: HSQ
Option 4: EST
Correct Answer: HSQ
Solution : Given: BYW : DWU :: FUS : ?
Add 2 to the place value of the first letter and subtract 2 from the place value of the second and the third letter. BYW→B + 2 = D; Y – 2 = W; W – 2
Question : Select the most appropriate ANTONYM of the underlined word in the given sentence. A boy died after he was assaulted by a teacher in his school.
Option 1: scolded
Option 2: guarded
Option 3: warned
Option 4: criticised
Correct Answer: guarded
Solution : The correct choice will be the second option.
The most appropriate antonym for the underlined word "assaulted" in the given sentence is "guarded".
Explanation:
Assaulted: It refers to a physical attack or violent act.
Guarded: It implies protection or being kept safe from harm.
In
Question : A tap can fill a cistern in 40 minutes and a second tap can empty the filled cistern in 60 minutes. By mistake without closing the second tap, the first tap was opened. In how many minutes will the empty cistern be filled?
Option 1: 72 minutes
Option 2: 84 minutes
Option 3: 108 minutes
Option 4: 120 minutes
Correct Answer: 120 minutes
Solution : Tap A fills $\frac{1}{40}$ part in 1 minute. Tap B empties $\frac{1}{60}$ part in 1 minute. Both pipe together in 1 minute can fill $=\frac{1}{40}-\frac{1}{60}=\frac{1}{120}$ part Thus, time taken to fill the tank = 120 minutes Hence, the correct answer is 120 minutes.
Question : Which of the following statements is not true about the game of Kho Kho?
Option 1: It is one of the oldest traditional tag games of India
Option 2: Ten players take the field in the beginning to start the match
Option 3: It is a team game
Option 4: Three defenders of opposite team try to avoid being touched by the chasers
Correct Answer: Ten players take the field in the beginning to start the match
Solution : The correct option is for Ten players to take the field in the beginning to start the match
In Kho Kho, each team consists of nine players, and at the beginning of the match,
Question : Directions: In each of the following question, choose the correct alternative which will improve the part of the sentence given in quotes.
Apple's new "operate" system for phones and tablets, iOS 11, is betting on some much-sought-after updates.
Option 1: 1
Option 2: 2
Option 3: 3
Option 4: 4
Correct Answer: 1
Solution : The correct choice is the first option.
Question : Directions: Select the correct option that indicates the arrangement of the given words in the order in which they appear in an English dictionary. 1. Doctor 2. Doctorate 3. Docile 4. Documentary 5. Dock 6. Doctrine
Option 1: 3, 5, 1, 2, 6, 4
Option 2: 3, 5, 1, 6, 2, 4
Option 3: 3, 5, 2, 1, 6, 4
Option 4: 3, 4, 5, 1, 2, 6
Correct Answer: 3, 5, 1, 2, 6, 4
Solution : Given: 1. Doctor 2. Doctorate 3. Docile 4. Documentary 5. Dock 6. Doctrine
Step 1: The first, second, and third letters of each word are the same, so move on to the next letter. Step 2: The fourth letter of
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