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Staff Selection Commission Combined Higher Secondary Level Exam

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Question : Simplify the expression:
$\frac{1}{8}\left[\frac{1}{b-1}-\frac{1}{b+1}-\frac{2}{b^2+1}-\frac{4}{b^4+1}\right]$

Option 1: $\frac{1}{b^8-1}$

Option 2: $\frac{8}{b^8+1}$

Option 3: $\frac{8}{b^8-1}$

Option 4: $\frac{1}{b^8+1}$

Team Careers360 25th Jan, 2024

Correct Answer: $\frac{1}{b^8-1}$


Solution : $\frac{1}{8}[\frac{1}{b-1}-\frac{1}{b+1}-\frac{2}{b^2+1}-\frac{4}{b^4+1}]$
= $\frac{1}{8}[\frac{(b+1)-(b-1)}{b^2-1}-\frac{2}{b^2+1}-\frac{4}{b^4+1}]$
= $\frac{1}{8}[\frac{2}{b^2-1}-\frac{2}{b^2+1}-\frac{4}{b^4+1}]$
= $\frac{1}{8}[\frac{2(b^2+1)-2(b^2-1)}{b^4-1}-\frac{4}{b^4+1}]$
= $\frac{1}{8}[\frac{4}{b^4-1}-\frac{4}{b^4+1}]$
= $\frac{1}{8}[\frac{4(b^4+1)-4(b^4-1)}{b^8-1}]$
= $\frac{1}{8}[\frac{8}{b^8-1}]$
= $\frac{1}{b^8-1}$
Hence, the correct answer is $\frac{1}{b^8-1}$.

27 Views

Question : Directions: In this 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.

The human mind seems to have built-in _____ against original thought.

Option 1: ideas

Option 2: interests

Option 3: safeguards

Option 4: prejudices

Team Careers360 25th Jan, 2024

Correct Answer: prejudices


Solution : The correct choice to fill in the blanks is the fourth option.

Prejudice means opinions that are not experienced by oneself, are preconceived, and go correctly in the sentence, as the sentence implies that the brain has some opinions that may not be experienced in

7 Views

Question : Which river originates from the southern part of Devarayanadurga hill in Tumkur district and flows for about 221 km before joining Kaveri?

Option 1: Shimsha River

Option 2: Girna River

Option 3: Ghataprabha River

Option 4: Waghur River

Team Careers360 25th Jan, 2024

Correct Answer: Shimsha River


Solution : The correct option is Shimsha River.

One of the Kaveri River's tributaries is the Shimsha. The river originates in Tumkur's Devarayanadurga hills. At Chamarajanagar, it enters the Cauvery after flowing for around 221 km from its source. After originating in the Tumkur district,

12 Views

Question : Improve the underlined part of the sentence. Choose 'No Improvement' as an answer if the sentence is grammatically correct.

The number of women working outside homes has been steady increasing.

Option 1: has been steadily

Option 2: had been steadier

Option 3: No Improvement

Option 4: have been steady

Team Careers360 25th Jan, 2024

Correct Answer: has been steadily


Solution : The correct choice is the first option.

Explanation:

The original sentence has a grammatical error in the adverb, steady. The adverb steady should be modified to its adverbial form steadily to correctly describe the manner in which the action is taking

22 Views

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

Option 1: Esteem

Option 2: Disrepute

Option 3: Stigma

Option 4: Infamy

Team Careers360 25th Jan, 2024

Correct Answer: Esteem


Solution : The first option is correct.

Ignominy: It denotes public shame and embarrassment.

Esteem: It denotes a good opinion of somebody.

The meanings of the other options are as follows:

  • Disrepute: It denotes the situation when people no longer respect somebody or something.
  • Stigma: It denotes
13 Views

Question : Gurucharan Singh received the Padma Shri from the Government of India for his contributions to the sport of________.

Option 1: football

Option 2: basketball

Option 3: kabaddi

Option 4: cricket

Team Careers360 25th Jan, 2024

Correct Answer: cricket


Solution : The correct option is cricket.

Gurucharan Singh received the Padma Shri from the Government of India in 2023 for his contributions to the sport of cricket. He is a renowned cricket coach who has nurtured the careers of many international cricketers, including Kirti Azad,

16 Views

Question : Breaking down of rock in situ is known as

Option 1: erosion

Option 2: weathering

Option 3: mass wasting

Option 4: degrading

Team Careers360 25th Jan, 2024

Correct Answer: weathering


Solution : The correct option is weathering.

The breaking down of rock in situ is known as "weathering". Weathering is a natural process that occurs over time as they are exposed to various environmental factors. There are two main types of weathering: Mechanical weathering, and chemical

17 Views

Question : Which of the following statements is true?
I. $\frac{5}{11}>\frac{5}{6}$
II. $\frac{5}{9}>\frac{8}{9}$
III. $\frac{5}{6}>\frac{4}{5}$

Option 1: Only III

Option 2: Both I and II

Option 3: Only II

Option 4: Only I

Team Careers360 25th Jan, 2024

Correct Answer: Only III


Solution : Fractions with the same numerator are compared based on their denominators. The fraction with the smaller denominator is greater.
Fractions with the same denominator are compared based on their numerators. The fraction with the larger numerator is greater.
I. $\frac{5}{11} < \frac{5}{6}$ ($\frac{5}{11}$ is

16 Views

Question : Who was the founder of Satyashodak Sabha in Maharashtra?

Option 1: Dr. Baba Saheb Ambedkar

Option 2: Dr. Atmaram Pandurang

Option 3: Gopal Baba Walangkar

Option 4: Jyotiba Phule

Team Careers360 25th Jan, 2024

Correct Answer: Jyotiba Phule


Solution : The correct answer is Jyotiba Phule.

Jyotiba Phule was a Maharashtrian social reformer. Jyotiba Phule founded Satyashodhak Sabha in 1873 in Pune, Maharashtra. It was a social reform society which helped to promote education, social rights, and Justice in deprived sections of the society.

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