Staff Selection Commission Sub Inspector Exam
Question : The following bar diagram shows the number of students who opted for different subjects in the year 2020 and 2021. Find the ratio of students opting for Economics to students opting for Physical Education in 2020.
Option 1: 3 : 7
Option 2: 3 : 5
Option 3: 5 : 9
Option 4: 5 : 7
Correct Answer: 3 : 5
Solution : Students opting for Economics in 2020 = 75 Students opting for Physical Education in 2020 = 125 Required ratio = 75 : 125 = 3 : 5 Hence, the correct answer is 3 : 5.
Question : The Beating Retreat ceremony is held at which of the following places?
Option 1: Chandni Chowk
Option 2: Connaught Place
Option 3: India Gate
Option 4: Vijay Chowk
Correct Answer: Vijay Chowk
Solution : The correct answer is Vijay Chowk.
In India, the official conclusion of Republic Day celebrations is marked with a beating retreat. It is organised by the Ministry of Defence and takes place on the evening of January 29, the third day after Republic
Question : Directions: If + means –, – means ×, × means ÷, and ÷ means +, then what will be the value of the following expression? 15 – 2 ÷ 90 × 9 + 10
Option 1: 32
Option 2: 40
Option 3: 30
Option 4: 50
Correct Answer: 30
Solution : Given: + means –, – means ×, × means ÷, and ÷ means + 15 – 2 ÷ 90 × 9 + 10
After replacing symbols according to the question, the equation becomes – = 15 × 2 + 90 ÷ 9 – 10 =
Question : Two metallic balls P and Q are such that the diameter of P is four times the diameter of Q. What is the ratio between the volumes of P and Q?
Option 1: 32 : 1
Option 2: 16 : 1
Option 3: 8 : 1
Option 4: 64 : 1
Correct Answer: 64 : 1
Solution : Given: Two metallic balls P and Q are such that the diameter of P is four times the diameter of Q. Use the formula, The volume of the sphere of radius $r$ is $\frac{4}{3}\pi r^3$. Let the diameters of P and Q be
Question : ______ is characterized by abundant dissolved oxygen, sunlight, nutrients, generally high wave energies and water motion and in the intertidal subzone, alternating submergence and exposure.
Option 1: The Lentic Zone
Option 2: The Limnetic Zone
Option 3: The Littoral Zone
Option 4: The Benthic Zone
Correct Answer: The Littoral Zone
Solution : The correct option is The Littoral Zone.
The Littoral Zone is a region of the sea that is characterised by an abundance of dissolved oxygen, sunlight, nutrients, high wave energies and water motion. The intertidal subzone of the Littoral Zone experiences tidal
Question : Directions: In a certain code language, DRAFT is written as GUDIW and LIMIT is written as OLPLW. How will MAJOR be written in that language?
Option 1: OBMRT
Option 2: QCNQT
Option 3: PDMRU
Option 4: QBWRU
Correct Answer: PDMRU
Solution : Given: DRAFT is written as GUDIW and LIMIT is written as OLPLW.
Add 3 to the place value of each letter of DRAFT and LIMIT to get the code. DRAFT→D + 3 = G; R + 3 = U; A + 3 = D; F
Question : Directions: Seven students A, B, C, D, E, F, and G are sitting around a circular table facing the centre. C is an immediate neighbour of both E and F. D is sitting third to the left of C and to the immediate right of A. A is sitting second to the right of E. B is an immediate neighbour of both E and A. G is to the immediate left of F. Who is the immediate neighbour of both C and G?
Option 1: E
Option 2: F
Option 3: A
Option 4: D
Correct Answer: F
Solution : Given: I. C is an immediate neighbour of both E and F. D is sitting third to the left of C and to the immediate right of A. A is sitting second to the right of E.
II. B is an immediate neighbour of both
Question : While tabling marks scored in an examination by the students of a class, by mistake the marks scored by one student got recorded as 93 in place of 63, and thereby the average marks increased by 0.5. What was the number of students in the class?
Option 1: 60
Option 2: 20
Option 3: 15
Option 4: 30
Correct Answer: 60
Solution : Let the number of students in the class as $n$. The total increase in marks due to the mistake is 93 – 63 = 30 marks This increase caused the average marks to increase by 0.5 marks. Average = $\frac{\text{Sum of all the observations}}{{\text{Total number
Question : Directions: In the question, a part of the sentence is in bold. Below are given alternatives to the bold part at (1), (2) and (3) that may improve the sentence. Choose the correct alternative. In case no improvement is needed, your answer is (4).
Torture and trauma have made her a mental patient.
(1) mad
(2) lunatic
(3) mania
(4) No Improvement
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
Correct Answer: (2)
Solution : The correct choice is the second option.
Mental should be replaced with lunatic to convey the intended meaning.
The word mental is a more general term, while lunatic is a more specific term that refers to someone who is mentally ill or insane. Mania refers
Question : Which of the following statements is correct? I. When any plane passing through the central axis of the body divides the organism into two identical halves, it is called radial symmetry. II. Where the body can be divided into identical left and right halves in only one plane, exhibit bilateral symmetry.
Option 1: Only I
Option 2: Only II
Option 3: Both I and II
Option 4: Neither I nor II
Correct Answer: Both I and II
Solution : The correct option is Both I and II.
Radial symmetry is a type of symmetry that is characterised by a plane that passes through the central axis of an organism's body, dividing it into two identical halves. This type of symmetry is
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