Staff Selection Commission Sub Inspector Exam
Question : Directions: If + means ÷, – means +, × means – and ÷ means ×, what will be the value of the following e×pression? [{(14 × 6) – (4 ÷ 3)} + (6 – 4)] ÷ 3 = ?
Option 1: 3
Option 2: 6
Option 3: 1
Option 4: 9
Correct Answer: 6
Solution : Given: [{(14 × 6) – (4 ÷ 3)} + (6 – 4)] ÷ 3 = ?
After interchanging the given mathematical signs, we get – ⇒ [{(14 – 6) + (4 × 3)} ÷ (6 + 4)] × 3 ⇒ [{8 + 12} ÷ 10]
Question : Select the option that can be used as a one-word substitute for the given group of words. Huge fire for celebration
Option 1: Campaign
Option 2: Bonfire
Option 3: Agenda
Option 4: Crossfire
Correct Answer: Bonfire
Solution : The second option is correct.
The one-word substitute for huge fire for celebration is bonfire.
A bonfire is a large outdoor fire, typically made for ceremonial or celebratory purposes.
Therefore, the correct answer is bonfire.
Question : Directions: When the following figure is folded to form a cube, which letter number will be on the face opposite to the face showing the letter number A1? (The elements are shown to indicate the sides only.)
Option 1: U5
Option 2: O4
Option 3: I3
Option 4: E2
Correct Answer: U5
Solution : In the 3D view of dice, 1. Each face out of the three faces in the 3D view should be from all the pairs. 2. Two opposite faces cannot appear adjacently in the 3D view of a folded cube figure. So, the opposite pairs of
Question : The bar graph given here shows the data on the production of cars by three different companies X, Y, and Z over the years. For which of the following years is the percentage rise/fall in the production from the previous year the maximum for company Y?
Option 1: 2019
Option 2: 2018
Option 3: 2016
Option 4: 2017
Correct Answer: 2017
Solution : Production of cars by Y in 2016 = 25 Production of cars by Y in 2017 = 35 Percentage increase from the previous year = $\frac{\text{Production of current year – Production of previous year}}{\text{Production of previous year}}\times100$ = $\frac{35-25}{25}\times100=40$% Production of cars by Y in
Question : The profit obtained on selling an article for Rs. 310 is equal to the loss incurred on selling that article for Rs. 230. What will be the loss percentage when the selling price is Rs. 180?
Option 1: $16\frac{1}{3}$
Option 2: $16\frac{2}{3}$
Option 3: $33\frac{1}{3}$
Option 4: $33\frac{2}{3}$
Correct Answer: $33\frac{1}{3}$
Solution : According to the question, 310 – Cost price = Cost price – 230 ⇒ Cost price = $\frac{310 + 230}{2}=270$ When selling price = INR 180 Loss percentage = $\frac{270-180}{270}$×100 = $33\frac{1}{3}$% Hence, the correct answer is $33\frac{1}{3}$.
Question : If $\frac{2 \sin A-\cos A}{\sin A+\cos A}=1$, then find the value of $\cot A$.
Option 1: $1$
Option 2: $\frac{1}{2}$
Option 3: $\frac{1}{3}$
Option 4: $2$
Correct Answer: $\frac{1}{2}$
Solution : Given, $\frac{2 \sin A-\cos A}{\sin A+\cos A}=1$ Taking $\sin A$ as common ⇒ $\frac{\sin A(2-\frac{\cos A}{\sin A})}{\sin A(1+\frac{\cos A}{\sin A})}=1$ ⇒ $2-\cot A=1+\cot A$ ⇒ $2\cot A = 1$ ⇒ $\cot A = \frac12$ Hence, the correct answer is $\frac12$.
Question : Directions: Find out the number of triangles in the given figure.
Option 1: 13
Option 2: 15
Option 3: 16
Option 4: 17
Correct Answer: 16
Solution : The given figure can be labelled as shown below –
Now, in the above figure, there are a total of 16 triangles. They are ABK, KBN, KLJ, HIM, HNF, FHG, NLM, NKH, BCN, NEF, CNE, DCE, BDF, KEG, ACH, ADG.
Hence, the third option is
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".
Kindly confirm by letter and telephone (1) / that you will be able (2) / to attend the interview. (3) / No Error (4)
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
Correct Answer: (2)
Solution : The error lies in the second part of the sentence.
That should be replaced with whether. The conjunction that is used to introduce the reported clause and whether is used in case of two or more alternatives.
Therefore, the correct sentence is: Kindly confirm
Question : Who was the first ecologist to describe the specific shape of eco-trophic interactions, which he called the pyramid of numbers, in the 1920s?
Option 1: Charles Elton
Option 2: Ernst Haeckel
Option 3: Howard Thomas Odum
Option 4: E. O. Wilson
Correct Answer: Charles Elton
Solution : The correct option is Charles Elton.
The concept of the pyramid of numbers in ecological trophic interactions was first introduced by the British ecologist Charles Elton in the 1920s. Elton described the structure of ecosystems based on the number of organisms at different
Question : Substitute one word for the italicised expression.
When her teacher calls her a person who cannot be corrected, she laughs at herself.
Option 1: obedient
Option 2: reformable
Option 3: incorrigible
Option 4: manageable
Correct Answer: incorrigible
Solution : The third option is correct.
Incorrigible is used for a person or their behaviour that cannot be changed, making it the appropriate choice.
The meanings of the other options are as follows:
The Question containing Inaapropriate or Abusive Words
Question lacks the basic details making it difficult to answer
Topic Tagged to the Question are not relevant to Question
Question drives traffic to external sites for promotional or commercial purposes
The Question is not relevant to User
And never miss an important update
