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Staff Selection Commission Combined Higher Secondary Level Exam

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Question : If $2(x^{2}+\frac{1}{x^{2}})-(x-\frac{1}{x})-7=0$, then two values of $x$ are:

Option 1: $1, 2$

Option 2: $2,-\frac{1}{2}$

Option 3: $0, 1$

Option 4: $\frac{1}{2},1$

Team Careers360 24th Jan, 2024

Correct Answer: $2,-\frac{1}{2}$


Solution : Given: $2(x^{2}+\frac{1}{x^{2}})-(x-\frac{1}{x})-7=0$
We know that, $x^{2}+\frac{1}{x^{2}} = (x-\frac{1}{x})^2+2$
⇒ $2[(x-\frac{1}{x})^2+2]-(x-\frac{1}{x})-7=0$
Put $x-\frac{1}{x}=t$
⇒ $2t^2+4-t-7=0$
⇒ $2t^2-t-3=0$
⇒ $2t^2-3t+2t-3=0$
⇒ $t(2t-3)+1(2t-3)=0$
⇒ $(2t-3)(t+1)=0$
$\therefore t=\frac{3}{2}$ or, $ -1$
Now if,
$x-\frac{1}{x}=\frac{3}{2}$
⇒ $2x^2-2=3x$
⇒ $2x^2-3x-2=0$
⇒ $2x^2-4x+x-2=0$
⇒ $2x(x-2)+1(x-2)=0$
⇒ $(x-2)(2x+1)=0$
$\therefore x = 2$ or,

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Question : The diameter of the wheel of a cycle is 7 cm. A cyclist takes 75 minutes to reach a destination at the speed of 36.3 km/hr. How many revolutions will the wheel make during the journey?

Option 1: 206250

Option 2: 212520

Option 3: 196280

Option 4: 216580

Team Careers360 25th Jan, 2024

Correct Answer: 206250


Solution : The diameter of the wheel of a cycle = 7 cm
Time taken to reach the destination = 75 minutes = 1.25 hr
Seed of cycle = 36.3 km/hr
Total distance = Time × Speed = 1.25 × 36.3 km
Number of revolutions = $\frac{\text{Total

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Question : Directions: In the following question, select the one which is different from the other three alternatives.

Option 1: 24

Option 2: 28

Option 3: 42

Option 4: 56

Team Careers360 23rd Jan, 2024

Correct Answer: 42


Solution : Let's check the options –
First option: 24; 24 ÷ 4 = 6; 24 is divisible by 4.
Second option: 28; 28 ÷ 4 = 7; 28 is divisible by 4.
Third option: 42; 42 ÷ 4 = 10.5; 42 is not divisible by 4.

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Question : What is the value of $(a+b)^2+(a-b)^2$?

Option 1: $8ab$

Option 2: $4ab$

Option 3: $4(a^2+b^2)$

Option 4: $2(a^2+b^2)$

Team Careers360 25th Jan, 2024

Correct Answer: $2(a^2+b^2)$


Solution : Given, $(a+b)^2+(a-b)^2$
= $a^2+b^2+2ab+a^2+b^2-2ab$
= $2(a^2+b^2)$
Hence, the correct answer is $2(a^2+b^2)$.

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Question : Which among the following companies made an Initial Public Offering (IPO) in the Indian stock market in 2022?

Option 1: HDFC Bank

Option 2: JSW Steel

Option 3: Avenue Supermarts

Option 4: Adani Wilmar

Team Careers360 23rd Jan, 2024

Correct Answer: Adani Wilmar


Solution : The correct answer is Adani Wilmar.

Adani Wilmar Limited is an Indian multinational food and beverage conglomerate based in Ahmedabad, Gujarat. The company was founded in 1999 as a joint venture between Adani Enterprises and Wilmar International. 

Adani Wilmar launched their IPO in

18 Views

Question : Directions: In the given question, a sentence is given with a blank to be filled in with an appropriate word. Four alternatives are suggested for each question. Choose the correct alternative out of the four alternatives.

While mother mixed the cake ___, Dipu stood at the table watching her.

Option 1: batter

Option 2: concoction

Option 3: recipe

Option 4: mixture

Team Careers360 24th Jan, 2024

Correct Answer: batter


Solution : The first option is the correct choice.

Batter refers to the mixture of ingredients used for making the cake.

The meanings of the other options are as follows:

  • Concoction refers to a mixture of various ingredients or elements, but it might not be the best
36 Views

Question : Directions: Select the combination of letters that when sequentially placed in the blanks of the given series will complete the series.
G_ IJG_HIJGGH_ IJGGHH _IJ

Option 1: HIJG

Option 2: HGHI

Option 3: JGGJ

Option 4: GHHI

Team Careers360 24th Jan, 2024

Correct Answer: HGHI


Solution : Given:
G_ IJG_HIJGGH_ IJGGHH _IJ

To fill the series we have to divide the series – G_ IJ/G_HIJ/GGH _ IJ/GGHH _IJ
Let's check each option –
First option: HIJG; GHIJ/GIHIJ/GGHJIJ/GGHHGIJ (No repeated pattern has been found.)
Second

12 Views

Question : Choose the word that is opposite in meaning to the given word.
Credible.

Option 1: Unlikely

Option 2: Unswerving

Option 3: Conclusive

Option 4: Sheltered

Team Careers360 24th Jan, 2024

Correct Answer: Unlikely


Solution : The correct choice is the first option.

The word credible refers to being capable of being believed or trusted, indicating reliability and trustworthiness. The opposite of credible would be something that is not likely to be believed or trusted.

The meanings of the other options

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Question : Which of the following states is not a major producer of fertilisers?

Option 1: Himachal Pradesh

Option 2: Gujarat

Option 3: Maharashtra

Option 4: Uttar Pradesh

Team Careers360 25th Jan, 2024

Correct Answer: Himachal Pradesh


Solution : The correct option is Himachal Pradesh.

Himachal Pradesh is not considered a major producer of fertilisers in India. Some of the major producers of fertilisers in India include states like Gujarat, Uttar Pradesh and Maharashtra. These states have significant manufacturing facilities and contribute

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