Staff Selection Commission Combined Higher Secondary Level Exam
Question : Directions: A series is given below with one term missing. Choose the correct alternative from the given ones that will complete the series. DP, EY, FJ, ?
Option 1: GX
Option 2: GS
Option 3: GT
Option 4: GW
Correct Answer: GW
Solution : Given: DP, EY, FJ, ?
Add 1 and 9 to the positional value of the first and second letters respectively of the previous term to obtain the next term in the series – First letter of the series→D + 1 = E; E + 1 = F; F + 1 = G Second letter of the series→P + 9 = Y; Y + 11 = J; J + 13 = W
So, GW is the missing term. Hence, the fourth option is correct.
Question : Directions: Identify the figure given in the options which when put in place of the question mark (?) will logically complete the series.
Option 1:
Option 2:
Option 3:
Option 4:
Correct Answer:
Solution : In the given figure, a circular top is in the opposite direction alternately, and in each step, the number of circular top arrows increased by 1 on the right and 1 on the left side of the box. Thus, the missing part of the figure is –
Therefore, the complete figure is given below –
Hence, the fourth option is correct.
Question : If $\frac{1}{a}–\frac{1}{b}=\frac{1}{a–b}$, then the value of $a^{3}+b^{3}$ is:
Option 1: 0
Option 2: –1
Option 3: 1
Option 4: 2
Correct Answer: 0
Solution : Given: $\frac{1}{a}–\frac{1}{b}=\frac{1}{a–b}$ ⇒ $\frac{b–a}{ab}=\frac{1}{a–b}$ ⇒ $(b–a)(a–b)=ab$ ⇒ $(a–b)^{2}=–ab$ ⇒ $a^{2}+b^{2}–2ab=–ab$ ⇒ $a^{2}+b^{2}=ab$ ⇒ $a^{2}+b^{2}-ab=0$ We know $a^3+b^3=(a+b)(a^2+b^2-ab)$ So, $a^3+b^3=0$ Hence, the correct answer is $0$.
Question : Neeti wants to use an input device that works by sensing the user's finger movement and downward pressure. Which among the following should she use?
Option 1: Scanner
Option 2: Touchpad
Option 3: Light pen
Option 4: Keyboard
Correct Answer: Touchpad
Solution : The correct answer is Touchpad.
Neeti should use a touchpad. Touchpads are input devices that detect the movement and pressure of a user's finger on a flat surface. They are commonly found on laptops and are used for navigating the cursor on the screen, clicking, and performing various gestures. The touchpad matches the description of an input device that senses both finger movement and downward pressure.
Question : Directions: How many triangles are there in the given figure?
Option 1: 22
Option 2: 21
Option 3: 16
Option 4: 24
Correct Answer: 22
Solution : The given figure can be labelled as shown below –
In the above-labelled figure, there are a total of 22 triangles. They are AKM, ADH, HNM, HEA, HNO, HEF, HMO, HAF, FOP, FHI, FPQ, FIJ, FOQ, FHJ, JRQ, JGF, JRS, JGB, JQS, JFB, BSL, BJC.
Hence, the first option is correct.
Question : In which of the following states in Jog Falls located?
Option 1: Orissa
Option 2: Kerela
Option 3: Andhra Pradesh
Option 4: Karnataka
Correct Answer: Karnataka
Solution : The correct option is - Karnataka
In the Shimoga district of Karnataka's Western Ghats, Jog Falls is a waterfall on the Sharavathi River. It is India's second-highest plunge waterfall. It is a segmented waterfall that changes its form depending on the time of year and the amount of rainfall.
Question : Which among the following is India’s first indigenously developed COVID-19 vaccine?
Option 1: Sputnik V
Option 2: Covishield
Option 3: COVAXIN
Option 4: Novavax
Correct Answer: COVAXIN
Solution : The correct option is COVAXIN.
India's first indigenously developed COVID-19 vaccine is Covaxin. It was developed by Bharat Biotech in collaboration with the Indian Council of Medical Research (ICMR) and the National Institute of Virology (NIV). Covaxin received emergency use authorisation in India and played a significant role in the country's COVID-19 vaccination campaign.
Question : DE is tangent to the circumcircle of $\triangle$ABC at the vertex A such that $DE \parallel BC$. If AB = 17 cm, then the length of AC is equal to:
Option 1: 16 cm
Option 2: 16.8 cm
Option 3: 17.3 cm
Option 4: 17 cm
Correct Answer: 17 cm
Solution : Given: DE || BC and AB = 17 cm. From the alternate segment theorem, we get $\angle$DAB = $\angle$ACB Also, $\angle$DAB = $\angle$ABC (Alternate angle) So, $\angle$ACB = $\angle$ABC ⇒ AB = AC = 17 cm Hence, the correct answer is 17 cm.
Question : Which among the following is the monsoon mud festival of Goa?
Option 1: Sarhul
Option 2: Karma
Option 3: Chikhal Kalo
Option 4: Lahaina
Correct Answer: Chikhal Kalo
Solution : The correct answer is Chikhal Kalo.
Chikhal Kalo, an exclusive religious festival held in the village of Marcel in Goa, is a unique blend of devotion and enjoyment. It takes place annually on the 11th day of the Hindu month of Ashadh within the expansive grounds of the Devki Krishna temple. With the onset of the monsoon, the temple premises transform into a muddy terrain, adding a crucial element to the ensuing festivities.
Question : The table given below shows the savings and expenditures of 5 companies.
The total expenditure of all the companies is how much percent less than the total savings?
Option 1: 16.67 percent
Option 2: 9.09 percent
Option 3: 10.56 percent
Option 4: 13.79 percent
Correct Answer: 13.79 percent
Solution : The total expenditure of all the companies = 200 + 500 + 400 + 300 + 1100 = 2500 Total savings of all the companies = 400 + 900 + 700 + 400 + 500 = 2900 Required percentage = $\frac{2900-2500}{2900}\times 100=13.79\%$ Hence, the correct answer is 13.79 percent.
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