Staff Selection Commission Sub Inspector Exam
Question : Select the most appropriate meaning of the given idiom. To burn the midnight oil
Option 1: To waste time
Option 2: To stay up late working or studying
Option 3: To overthink
Option 4: To be relaxed and calm
Correct Answer: To stay up late working or studying
Solution : The correct choice is the second option.
The idiom "to burn the midnight oil" originates from the idea of working late into the night when traditionally people used oil lamps for illumination. It figuratively means putting in extra effort
Question : The value of $(\sin^445°+ \cos^460°) + (\tan^445°+ \cot^445°)$ is:
Option 1: $\frac{37}{16}$
Option 2: $\frac{33}{16}$
Option 3: $\frac{35}{16}$
Option 4: $\frac{39}{16}$
Correct Answer: $\frac{37}{16}$
Solution : Given: $(\sin^445°+ \cos^460°) + (\tan^445°+ \cot^445°)$ = $(\frac{1}{\sqrt2})^4 + (\frac{1}{2})^4 + (1)^4 + (1)^4$ = $\frac{1}{4} + \frac{1}{16} + 1 + 1$ = $\frac{4+1+16+16}{16}$ = $\frac{37}{16}$ Hence, the correct answer is $\frac{37}{16}$.
Question : Directions: In the following question, the given sentence has four parts marked P, Q, R, and S. Choose the part of the sentence with the error and select it as your answer. If there is no error, select 'No Error (S)' as your answer.
King penguins (P) / are active throughout (Q) / the long summer days. (R) / No Error (S)
Option 1: 1
Option 2: 2
Option 3: 3
Option 4: 4
Correct Answer: 4
Solution : The correct answer is the fourth option.
Since the sentence is grammatically accurate and doesn't need any change. The sentence conveys the idea that king penguins are active during the entirety of the long summer days.
Question : Which was the second capital of Akbar?
Option 1: Delhi
Option 2: Agra
Option 3: Fatehpur Sikri
Option 4: Patna
Correct Answer: Fatehpur Sikri
Solution : The correct answer is Fatehpur Sikri.
Fatehpur Sikri was established by Emperor Akbar after his conquests of Chittor and Ranthambore. In tribute to the Sufi saint Salim Chisti, Akbar shifted the capital from Agra to the Sikri ridge.
Question : The direction of heat flow depends on____.
Option 1: density
Option 2: energy
Option 3: mass
Option 4: temperature
Correct Answer: temperature
Solution : The correct option is temperature.
The temperature difference between two objects or locations determines the direction of heat movement. Heat naturally flows from higher-temperature zones to lower-temperature areas until equilibrium is established.
Question : Directions: A piece of paper is folded and cut as shown below in the question figures. From the given answer figures, indicate how it will appear when opened?
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : When the given folded paper is unfolded, it will look like –
Hence, the third option is correct.
Question : Find the effective discount for the scheme – Buy 5 get 3 free.
Option 1: 36.5%
Option 2: 37.5%
Option 3: 36%
Option 4: 37%
Correct Answer: 37.5%
Solution : Let the price of 1 article be Re. 1. Total articles = 5 + 3 = 8 So, the price of 8 articles is Rs. 8. $\therefore$ Discount percentage $=\frac{\text{Free articles}}{\text{Total articles}}×100=\frac{3}{8}×100=37.5\%$ Hence, the correct answer is 37.5%.
Question : In an entrance examination at different centres, a total of 25, 30, 40, 45, 60 and 100 students appeared. The pass percentages of the different centres are 20%, 30%, 35%, 40%, 50% and 75%, respectively. The pass percentage of the entrance examination is: (correct to the nearest integer)
Option 1: 59%
Option 2: 43%
Option 3: 53%
Option 4: 50%
Correct Answer: 50%
Solution : Passing percentage = $\frac{\text{Number of students passed in the examination at all centres}}{\text{Total number of students appeared}}\times 100$ ⇒ Passing percentage = $\frac{\text{20% of 25 + 30% of 30 + 35% of 40 + 40% of 45 + 50% of 60 + 75% of 100}}{25
Question : Study the given table and answer the question that follows. The table shows the number of students studying in 6 different classes at 6 different schools.
Which class has the maximum number of students from all schools together?
Option 1: X
Option 2: VII
Option 3: VI
Option 4: V
Correct Answer: VI
Solution : Number of students in class V = 917 Number of students in class VI = 924 Number of students in class VII = 904 Number of students in class VIII = 919 Number of students in class IX = 903 Number of students in class
Question : Direction: The pie chart shown below shows the percentage of time taken by different processes in making a car. If the total time taken to make a car is 300 hours, what is the total time taken to paint and frame?
Option 1: 99 hours
Option 2: 72 hours
Option 3: 105 hours
Option 4: 66 hours
Correct Answer: 105 hours
Solution : Total time to make a car = 300 hours Time taken to paint and frame = 13% + 22% = 45% of total time taken = $\frac{45}{100}×300$ = 105 Hence, the correct answer is 105 hours.
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