Staff Selection Commission Combined Graduate Level Exam
Question : If $\frac{a^2}{b+c}=\frac{b^2}{c+a}=\frac{c^2}{a+b}=1$, then find the value of $\frac{2}{1+a}+\frac{2}{1+b}+\frac{2}{1+c}$.
Option 1: 0
Option 2: 1
Option 3: 2
Option 4: 3
Correct Answer: 2
Solution : Given: $\frac{a^2}{b+c}=\frac{b^2}{c+a}=\frac{c^2}{a+b}=1$ ⇒ $a^2=b+c$, $b^2=c+a$, and $c^2=a+b$ Now, $\frac{2}{1+a}+\frac{2}{1+b}+\frac{2}{1+c}$ Multiplying the numerator and denominator of the first, second, and third term by $a$, $b$, and $c$ respectively. $=\frac{2a}{a+a^2}+\frac{2b}{b+b^2}+\frac{2c}{c+c^2}$ $=\frac{2a}{a+b+c}+\frac{2b}{b+a+c}+\frac{2c}{c+a+b}$ $=\frac{2a+2b+2c}{a+b+c}$ $=\frac{2(a+b+c)}{a+b+c}$ $=2$ Hence, the correct answer is 2.
Question : If $x^4+y^4+x^2 y^2=17 \frac{1}{16}$ and $x^2-x y+y^2=5 \frac{1}{4}$, then one of the values of $(x-y)$ is:
Option 1: $\frac{5}{2}$
Option 2: $\frac{3}{4}$
Option 3: $\frac{5}{4}$
Option 4: $\frac{3}{2}$
Correct Answer: $\frac{5}{2}$
Solution : Given: $x^4+y^4+x^2 y^2=17 \frac{1}{16}$..........................(1) $x^2-x y+y^2=5 \frac{1}{4}$..........................(2) ⇒ $x^4 + y^4 + x^2y^2 = (x^2 - xy + y^2) (x^2 + xy + y^2)$ ⇒ $17\frac{1}{16} = 5\frac{1}{4} (x^2 + xy + y^2)$ ⇒ $\frac{273}{16} = \frac{21}{4} (x^2 + xy + y^2)$ ⇒ $x^2 +
Question : Select the most appropriate meaning of the underlined word in the following sentence.
During the wedding ceremony, the bride seemed even quieter and more diffident than usual.
Option 1: Showing lack of interest.
Option 2: Bold in others' company.
Option 3: Giving a false or misleading impression.
Option 4: Shy due to lack of confidence.
Correct Answer: Shy due to lack of confidence.
Solution : The correct choice is the fourth option.
Shy due to lack of confidence: This accurately reflects the meaning of diffident. It describes someone who is hesitant or lacking in self-assurance, often appearing shy or reserved due to
Question : The average mark obtained by a class of 60 students is 65. The average marks of half of the students were found to be 85. The average marks of the remaining students are:
Option 1: 35
Option 2: 45
Option 3: 55
Option 4: 65
Correct Answer: 45
Solution : Let the average marks of the remaining 30 students be $p$. So, $65=\frac{(30×85)+(30×p)}{60}$ ⇒ $65 × 60 = 2550 + 30p$ ⇒ $3900 = 2550 + 30p$ ⇒ $30p = 3900 – 2550$ ⇒ $p=\frac{1350}{30}$ $\therefore p=45$ Hence, the correct answer is 45.
Question : The system based on individual leadership is a __________ system.
Option 1: semi-parliamentary
Option 2: parliamentary
Option 3: presidential
Option 4: semi-presidential
Correct Answer: presidential
Solution : The answer is presidential.
The system based on individual leadership is presidential. In a presidential system, the head of state is also the head of government, and they are elected separately from the legislative branch.
Question : Select the most appropriate option to substitute the underlined segment in the given sentence.
The boys and the teacher wants to win.
Option 1: wants to won
Option 2: want to won
Option 3: want win
Option 4: want to win
Correct Answer: want to win
The subject (the boys and the teacher) is plural, and therefore, the verb used should also be in the plural form, that is, want to maintain the subject-verb agreement.
The correct sentence is: The boys and
Question : Following an order of July 16, 2021, the Supreme Court of India introduced an electronic system named ____________ in November 2021, through which its crucial decisions can be communicated electronically to prison authorities and investigating agencies.
Option 1: INSTANT
Option 2: FASTER
Option 3: RAPID
Option 4: QUICKER
Correct Answer: FASTER
Solution : The correct answer is FASTER.
Fast and Secured Transmission of Electronic Records: The Indian Supreme Court has implemented the Fast and Secured Transmission of Electronic Records (FASTER) electronic system, which allows it to securely transmit its important rulings to investigative and correctional authorities.
Question : With which of the following Government of India Acts did the Montagu-Chelmsford Reforms introduce Dyarchy in the provinces?
Option 1: Government of India Act, 1945
Option 2: Government of India Act, 1935
Option 3: Government of India Act, 1923
Option 4: Government of India Act, 1919
Correct Answer: Government of India Act, 1919
Solution : The correct answer is the Government of India Act, of 1919
The Montagu-Chelmsford Reforms established the Dyarchy system in British India's provinces. The Montagu-Chelmsford Reforms, commonly known as the Government of India Act of 1919, were used to execute this change.
Question : Who among the following is noted for playing the flute?
Option 1: Pandit Kumar Gandharva
Option 2: Pandit Hariprasad Chaurasia
Option 3: Pandit Ravishankar
Option 4: Pandit Shivkumar Sharma
Correct Answer: Pandit Hariprasad Chaurasia
Solution : The correct answer is Pandit Hariprasad Chaurasia.
Flute player Hariprasad Chaurasia is well-known in India. He is a member of the classical Hindustani tradition. He is a classical flautist and music director from India who plays the bansuri in the Hindustani classical
Question :
Which one of the following is an egg- laying animal?
Option 1:
Sloth
Option 2:
Duck – billed platypus
Option 3: Kangaroo
Option 4: Bandicoot
Correct Answer:
Solution : The correct option is duck-billed platypus
The duck-billed platypus (Ornithorhynchus anatinus) is a unique mammal native to Australia. It is one of only five extant species of monotremes, which are mammals that lay eggs instead of giving birth. The other four monotreme
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