Staff Selection Commission Sub Inspector Exam
Question : The measure of three angles of a quadrilateral are in the ratio 1 : 2 : 3. If the sum of these three measures is equal to the measure of the fourth angle, then find the smallest angle.
Option 1: $30^\circ$
Option 2: $40^\circ$
Option 3: $60^\circ$
Option 4: $50^\circ$
Correct Answer: $30^\circ$
Solution : Let the 1st, 2nd and 3rd angles be $x$, $2x$, and $3x$. $\therefore$ The 4th angle = $x+2x+3x=6x$ We know that the sum of the angles of the quadrilateral is $360^\circ$. According to the question, $x+2x+3x+6x=360^\circ$ ⇒ $12x=360^\circ$ ⇒ $x=30^\circ$ Since, the smallest angle is
Question : In Indus Valley Civilisation, the Great Bath is found in which of the following places?
Option 1: Lothal
Option 2: Mohenjo-Daro
Option 3: Mitathal
Option 4: Kalibangan
Correct Answer: Mohenjo-Daro
Solution : The correct answer is Mohenjo-Daro.
Among the ancient Indus Valley Civilisation remains at Mohenjo-Daro in Sindh, Pakistan, the Great Bath is one of the most well-known buildings. The earliest public water tank in the ancient world is a term that has also been used to
Question : Select the option that can be used as a one-word substitute for the given group of words. A person who introduces the performers or contestants in a variety show
Option 1: Calligrapher
Option 2: Compeer
Option 3: Compere
Option 4: Cypher
Correct Answer: Compere
Solution : The correct choice is the third option.
In the context of a person who introduces performers or contestants in a variety show, the term compere specifically relates to this role, overseeing the event's proceedings and engaging with the audience, ensuring a lively and smooth
Question : Directions: If a mirror is placed on the line MN, then which of the answer figures is the right image of the given figure?
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : As per the mirror image properties, closer things appear closer to the mirror in the reflection. So, according to the above property and the information provided, the mirror is placed on the right side of the figure (on line MN). So, the left side of the
Question : In 1928, which equation was derived and combined quantum theory and special relativity to describe the behaviour of an electron moving at a relativistic speed?
Option 1: Bernoulli's equation
Option 2: Lorentz equation
Option 3: Helmholtz equation
Option 4: Dirac equation
Correct Answer: Dirac equation
Solution : The correct answer is the Dirac equation.
The Dirac equation, developed by physicist Paul Dirac in 1928, is a relativistic wave equation in particle physics. It comprehensively describes spin-1⁄2 massive particles, known as " Dirac particles" including electrons and quarks, maintaining parity symmetry. This
Question : Directions: In the following question, a word is represented by only one set of numbers as given in any one of the alternatives. The sets of numbers given in the alternatives are represented by two classes of alphabets as in the two matrices, given below. The columns and rows of Matrix (I) are numbered from 7 to 10 and those of Matrix (II) are numbered from 2 to 6. A letter from these matrices can be represented first by its row and next by its column, e.g. D can be represented by 23 and 32. Similarly, you have to identify the set for the word — DOSSIER.
Option 1: 23, 54, 710, 25, 66, 26, 36
Option 2: 32, 35, 56, 44, 25, 78, 52
Option 3: 23, 43, 66, 26, 54, 35, 56
Option 4: 32, 54, 710, 87, 25, 24, 66
Correct Answer: 32, 54, 710, 87, 25, 24, 66
Solution : Given: DOSSIER
Number representations of each letter – D→23, 32, 44 O→52, 54 S→35, 56, 78, 87, 710 S→35, 56, 78, 87, 710 I→25, 79 E→24, 43, 64, 108 R→26, 66, 1010
Let's check the options – First option
Question : Directions: Study the given pattern carefully and select the number that can replace the question mark (?) in it.
Option 1: 194
Option 2: 150
Option 3: 176
Option 4: 188
Correct Answer: 194
Solution : The pattern runs horizontally along the rows – First row: {(58 – 28) × 4} – 2 = {30 × 4} – 2 = 120 – 2 = 118 Second row: {(44 – 21) × 4} – 2 = {23 × 4} – 2 =
Question : Directions: Study the following line chart carefully and answer the questions given below. The following chart represents the number of employees recruited in different years in a company. The number of employees recruited in 2012 was what percentage of the number of employees recruited in 2014?
Option 1: 50%
Option 2: 60%
Option 3: 62.5%
Option 4: 70%
Correct Answer: 62.5%
Solution : Using the graph provided. Number of employees recruited in the year 2012 = 25 Number of employees recruited in the year 2014 = 40 So, the required percentage = $\frac{25}{40}$ × 100 = 62.5% Hence, the correct answer is 62.5%.
Question : Directions: Which number will replace the question mark (?) in the following series? 65, 85, 112, ?, 215, 305, 430
Option 1: 153
Option 2: 161
Option 3: 150
Option 4: 167
Correct Answer: 153
Solution : Given: 65, 85, 112, ?, 215, 305, 430
Add 20 with a difference of multiple of 7 to obtain the required missing number as shown below –
Therefore, the required missing number in the series is 153. Hence, the first option is correct.
Question : Which Indian state has the second highest population after Uttar Pradesh as per Census 2011?
Option 1: Bihar
Option 2: West Bengal
Option 3: Maharashtra
Option 4: Madhya Pradesh
Correct Answer: Maharashtra
Solution : The correct option is Maharashtra
As per the 2011 Census of India, the state with the second-highest population after Uttar Pradesh is Maharashtra. Maharashtra is a large and populous state located in the western part of India.
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