Staff Selection Commission Sub Inspector Exam
Question : The following table shows the data of different colleges whose students participated in the Olympiad.
What is the percentage increase in the number of students who participated in the GK Olympiad to those who participated in the Science Olympiad from all colleges? (Correct to two decimals places.)
Option 1: 29.37%
Option 2: 29.89%
Option 3: 29.74%
Option 4: 29.01%
Correct Answer: 29.37%
Solution : Students participated in GK Olympiad = 182 + 200 + 120 + 130 + 183 = 815 Students participated in Science Olympiad = 100 + 100 + 150 + 200 + 80 = 630 Difference = 815 – 630 = 185 $\therefore$ Required percentage =
Question : Directions: In a certain code language, G is written as S, L as A, A as O, O as N, N as E, E as G, H as L, and S as H. How will HALOGENS be written in that code?
Option 1: LNAOSGEH
Option 2: LOANSGEH
Option 3: HOANSGEL
Option 4: HOENSGAH
Correct Answer: LOANSGEH
Solution : Here, as per the given instructions – G represents S; L represents A; A represents O; O represents N; N represents E; E represents G; H represents L; S represents H.
Therefore, HALOGENS is represented as LOANSGEH. Hence, the second option is correct.
Question : Select the option that can be used as a one-word substitute for the given group of words.
A collection of historical documents or records providing information about a place, institution, or group of people
Option 1: Museum
Option 2: Apostate
Option 3: Asylum
Option 4: Archive
Correct Answer: Archive
Solution : The fourth option is the correct answer.
Archive is a collection of historical documents or records, often in the form of manuscripts, letters, or other materials, providing information about a place, institution, or group of people.
The meanings of other options are as follows:
Question : Who among the following Indian authors has written the autobiography titled "My Story"?
Option 1: Arundhati Roy
Option 2: Shobha Dey
Option 3: Kiran Desai
Option 4: Kamala Das
Correct Answer: Kamala Das
Solution : The correct option is Kamala Das.
The Indian author who wrote the autobiography titled "My Story" is Kamala Das. "My Story" is her candid and controversial autobiography that was published in 1976. It is a candid account of Kamala Das's life, covering various
Question : During the occurrence of thunder and lightning:
Option 1: thunder is heard before lightning is seen
Option 2: lightning is seen at the same time as thunder is heard
Option 3: whether lightning is seen first or thunder is heard first will depend upon the distance and angle of the clouds vis-a-vis Earth
Option 4: lightning is seen before thunder is heard
Correct Answer: lightning is seen before thunder is heard
Solution : The correct option is lightning is seen before thunder is heard.
Light travels very quickly, thus when lightning strikes, one can see the dazzling flash of light practically instantly. Thunder, on the other hand, takes a while to
Question : If $x+\frac{1}{x}=-2$, then the value of $x^p +x^q$ is: (where $p$ is an even number and $q$ is an odd number)
Option 1: –2
Option 2: 2
Option 3: 1
Option 4: 0
Correct Answer: 0
Solution : Given: $x+\frac{1}{x}=-2$ $x^2 + 1 = -2x$ ⇒ $x^2 + 2x + 1 = 0$ ⇒ $(x+1)^2 = 0$ ⇒ $x = -1$ Given expression, $x^p + x^q$, where p is even and q is odd, $(-1)^{even} = 1$ and $(-1)^{odd} = -1$ $\therefore$ The
Question : Directions: Which of the following numbers will replace the question mark (?) in the given series? 93, ?, 102, 111, 123, 138
Option 1: 95
Option 2: 96
Option 3: 98
Option 4: 97
Correct Answer: 96
Solution : Given: 93, ?, 102, 111, 123, 138
Add the multiples of 3 to the previous term to obtain the next term. 93 + 3 = 96; 96 + 6 = 102; 102 + 9 = 111; 111 + 12 = 123; 123 + 15 =
Question : What will be the net discount (in percent) after giving three successive discounts of 10%, 20%, and 30%?
Option 1: 50.4%
Option 2: 49.6%
Option 3: 45.3%
Option 4: 48.4%
Correct Answer: 49.6%
Solution : Net discount = $x+y-\frac{xy}{100}$, where $x$ and $y$ are two successive discounts. Total discount of 10% and 20% = $10+20-\frac{\text{10×20}}{100}$ = 30 – 2 = 28% Now, total discount of 28% and 30% = $28+30-\frac{\text{28×30}}{100}$ = 58 – 8.4 = 49.6% Hence, the correct answer
Question : As per Union Budget 2019-20, the Indian economy is globally the ______ largest in Purchasing Power Parity (PPP) terms.
Option 1: fifth
Option 2: second
Option 3: third
Option 4: fourth
Correct Answer: third
Solution : The correct option is third.
According to that budget, India was globally the third-largest economy in terms of Purchasing Power Parity (PPP). The United States and China topped the list. Purchasing Power Parity (PPP) is a theory in economics that attempts to determine the relative
Question : Directions: Select the option that represents the letters that when sequentially placed from left to right in the blanks will complete the letter series. _ vp _ _ lhs _ _ kl _ hsv _ kll _
Option 1: sklvpllh
Option 2: sklvplph
Option 3: slkvpkph
Option 4: sklpvlph
Correct Answer: sklvplph
Solution : Given: _ vp _ _ lhs _ _ kl _ hsv _ kll _
To fill the series, we have to divide the series – _ vp _ _ lh / s _ _ kl _ h / sv _ kll _ Let's check the
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