Staff Selection Commission Sub Inspector Exam
Question : Which of the following planets is not a Jovian planet?
Option 1: Saturn
Option 2: Uranus
Option 3: Mars
Option 4: Jupiter
Correct Answer: Mars
Solution : The correct answer is Mars.
Mars is not a Jovian planet. Mars is a terrestrial planet. The Jovian planets are Jupiter, Saturn, Uranus and Neptune. They orbit far from the sun. These planets have no solid surfaces and are essentially large balls of gas
Question : If $\frac{x}{(b–c)(b+c–2a)}=\frac{y}{(c–a)(c+a–2b)}=\frac{z}{(a–b)(a+b–2c)}$, then $(x+y+z)$ is:
Option 1: $a+b+c$
Option 2: $0$
Option 3: $a^2+b^2+c^2$
Option 4: $2$
Correct Answer: $0$
Solution : Given: $\frac{x}{(b–c)(b+c–2a)}=\frac{y}{(c–a)(c+a–2b)}=\frac{z}{(a–b)(a+b–2c)}$ Let $\frac{x}{(b–c)(b+c–2a)}=\frac{y}{(c–a)(c+a–2b)}=\frac{z}{(a–b)(a+b–2c)}=k$. ${x}=k{(b–c)(b+c–2a)}$ (equation 1) ${y}=k{(c–a)(c+a–2b)}$ (equation 2) ${z}=k{(a–b)(a+b–2c)}$ (equation 3) Adding equations 1, 2, and 3 respectively, we get, $x+y+z=k{(b–c)(b+c–2a)}+k{(c–a)(c+a–2b)}+k{(a–b)(a+b–2c)}$ $x+y+z=k[(b–c)(b+c–2a)+(c–a)(c+a–2b)+(a–b)(a+b–2c)]$ $x+y+z= k[b^2+bc–2ab–bc–c^2+2ac+c^2+ac–2bc–ac–a^2+2ab+a^2+ab–2ac–ab–b^2+2bc)$ $x+y+z$ = 0 Hence, the correct answer is 0.
Question : Evaluate $6.9-[8.6-\{6.5-(5.4-\overline{4.3-2})\}]$
Option 1: 1.8
Option 2: 1.9
Option 3: 1.6
Option 4: 1.7
Correct Answer: 1.7
Solution : Given: $6.9-[8.6-\{6.5-(5.4-\overline{4.3-2})\}]$ = $6.9-[8.6-\{6.5-(5.4-2.3)\}]$ = $6.9-[8.6-\{6.5-3.1\}]$ = $6.9-[8.6-3.4]$ = $6.9-5.2$ = $1.7$ Hence. the correct answer is 1.7
Question : Directions: In the following question, a sentence is given with blanks that are to be filled in with appropriate words. Four alternatives are suggested; choose the correct alternative out of them as your answer.
The ____________ of the English language by a host of new words would __________ the old generation aghast.
Option 1: introduction, surprise
Option 2: invasion, leave
Option 3: entry, shock
Option 4: attack, delight
Correct Answer: invasion, leave
Solution : The correct answer is the second option.
Invasion: It implies a forceful entry or influx, often associated with a large number of entities. In the context of the sentence, it suggests the arrival of numerous new words into the English language.
Leave: In this
Question : The following pie chart shows the contribution (in Rs.) of some investors in the corpus fund of a company. If the total contribution by these investors is 100%, then what is the percentage contribution of Rakesh in the corpus fund?
Option 1: 17.30%
Option 2: 18.12%
Option 3: 17.95%
Option 4: 16.95%
Correct Answer: 17.30%
Solution : From the given pie chart, Contribution by Sahil = Rs. 74.30, Rakesh = Rs. 75.00, Sonia = Rs. 77.50, Kapil = Rs. 69.05, Preeti = Rs. 70.00 and Tannu = Rs. 67.52 So, the total contribution = 74.30 + 75.00 + 77.50 + 69.05 +
Question : How many principles are in the UN Charter?
Option 1: 4
Option 2: 6
Option 3: 7
Option 4: 8
Correct Answer: 6
Solution : The correct option is 6.
The Charter of the United Nations outlines 6 main principles. These principles are often referred to as the " Purposes and Principles" of the United Nations and are stated in
Question : Directions: Study the given pattern carefully and select the number that can replace the question mark (?) in it.
Option 1: 7
Option 2: 11
Option 3: 9
Correct Answer: 7
Solution : The square of the number given in the first column is equal to the multiplication of the second and the third column's number – In the row one: (12)2 = 9 × 16 ⇒ 144 = 144 In the row two: (9)2 =
Question : Tolkappiyar is a famous ancient grammarian of the ______ language.
Option 1: Tamil
Option 2: Kannada
Option 3: Telugu
Option 4: Oriya
Correct Answer: Tamil
Solution : The correct answer is Tamil.
Tolkappiyar was a renowned grammarian of the Tamil language. He is the author of the Tolkappiyam book, the oldest surviving Tamil grammar. Tolkappiyam is a collection of poems and prose written by Tolkappiyar, one of the disciples of Agattiyar.
Option 1: 72
Option 2: 120
Option 3: 88
Option 4: 68
Correct Answer: 68
Solution : Given:
The pattern can be observed running horizontally along the rows – Row 1: √(36) + 49 = 6 + 49 = 55 Row 2: √(64) + 39 = 8 + 39 = 47 Row 3:
Question : Directions: Select the related letter cluster from the given alternatives. HAPPY : ibqqz :: FRESH : ?
Option 1: gsfti
Option 2: gsdti
Option 3: gsftj
Option 4: esftg
Correct Answer: gsfti
Solution : Given: HAPPY : ibqqz :: FRESH : ?
Add 1 to the place value of each letter of HAPPY to obtain the required code – H + 1 = i; A + 1 = b; P + 1 = q; P + 1 = q;
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