Staff Selection Commission Combined Graduate Level Exam
Question : Directions: A series is given with one term missing. Select the correct alternative from the given ones that will complete the series. ABCD, EVKT, IPSJ, MJAZ, ?
Option 1: RQPH
Option 2: QDIP
Option 3: TDIC
Option 4: RMQR
Correct Answer: QDIP
Solution : Given: ABCD, EVKT, IPSJ, MJAZ, ? ⇒ ABCD: A + 4 = E; B – 6 = V; C + 8 = K; D – 10 = T→EVKT ⇒ EVKT: E + 4 = I; V – 6 = P; K + 8 = S;
Question : Who received the Nobel Prize 'for his research in the stereochemistry of organic molecules and reactions' in 1975?
Option 1: Vladimir Prelog
Option 2: William N. Lipscomb
Option 3: Geoffrey Wilkinson
Option 4: Paul J. Flory
Correct Answer: Vladimir Prelog
Solution : The correct answer is Vladimir Prelog.
Vladimir Prelog received the Nobel Prize in Chemistry in 1975 "for his research in the stereochemistry of organic molecules and reactions." Prelog was a Swiss chemist born in Sarajevo, Bosnia and Herzegovina, in 1906. He earned his PhD
Question : The value of $0. \overline{57}-0.4 \overline{32}+0.3 \overline{5}$ is:
Option 1: $0.4 \overline{98}$
Option 2: $0.4 \overline{94}$
Option 3: $0. \overline{498}$
Option 4: $0. \overline{495}$
Correct Answer: $0.4 \overline{98}$
Solution : $0. \overline{57}-0.4 \overline{32}+0.3 \overline{5}$ can be written as $=\frac{57}{99} - \frac{428}{990} + \frac{32}{90}$ $=\frac{(570 - 428 + 352)}{990}$ $=\frac{494}{990}$ [Converting into expression: 4 will be added with unit digit as the denominator having '0' in it) Value of the given Expression = $0.4 \overline{98}$
Question : If $\left(x - \frac{1}{x}\right) = 2 \sqrt{2}$, what is the value of $\left(\mathrm{x}^6 + \frac{1}{\mathrm{x}^6}\right)$?
Option 1: 1030
Option 2: 960
Option 3: 1000
Option 4: 970
Correct Answer: 970
Solution : Given: $\left(x - \frac{1}{x}\right) = 2 \sqrt{2}$ We know, $(x - \frac{1}{x})^{3} = x^{3} - \frac{1}{x^3} - 3×x×\frac{1}{x}(x - \frac{1}{x})$ $⇒(x - \frac{1}{x})^{3} = x^{3} - \frac{1}{x^3} - 3 \times 2\sqrt{2}$ $⇒(2\sqrt{2})^{3} = x^{3} - \frac{1}{x^3} -6\sqrt{2}$ $⇒x^{3} - \frac{1}{x^3} = 22\sqrt{2}$ $⇒(x^{3} - \frac{1}{x^3})^{2}
Question : Sentences of a paragraph are given below in jumbled order. Arrange the sentences in the correct order to form a meaningful and coherent paragraph. A. Some of these attachments can be quite cumbersome to use. B. Appliances like food processors come with a load of attachments. C. But, finding the right blade and fixing it in the right slot can be quite a job. D. For each different vegetable, you need to fix a different blade.
Option 1: DCAB
Option 2: BADC
Option 3: BDAC
Option 4: DACB
Correct Answer: BADC
Solution : The second option is the correct answer.
The paragraph begins by introducing the topic of appliances like food processors having multiple attachments (B).
It then highlights the potential issue of some attachments being cumbersome to use (A).
Following this, the paragraph delves into the complexity
Question : Identify a marine alga that is used as food.
Option 1: Ulothrix
Option 2: Sargassum
Option 3: Spirogyra
Option 4: Volvox
Correct Answer: Sargassum
Solution : The correct option is Sargassum.
Sargassum is a type of marine alga that is sometimes used as food. It is a brown seaweed found in the Sargasso Sea and other parts of the world's oceans. While it is not as commonly consumed as other
Question : India exports power to ----
Option 1: Bangladesh
Option 2: Myanmar
Option 3: Pakistan
Option 4: Bhutan
Correct Answer: Bangladesh
Solution : The correct option is Bangladesh
India is a major supplier of goods to many foreign markets, who import those goods into their nations. Bangladesh and Nepal are currently receiving electricity from India. Additionally, it exports electricity to Bhutan when the latter's hydropower output is low.
Question : In an examination, 35% of total students failed in Hindi, 45% failed in English and 20% failed in both. Find the percentage of those students who passed in both subjects.
Option 1: 45%
Option 2: 35%
Option 3: 20%
Option 4: 40%
Correct Answer: 40%
Solution : Failed in Hindi = 35% Failed in English = 45% Failed in both = 20% $\therefore$ Percentage of students who failed in a minimum of one subject = (35 + 45) – 20 = 60% Percentage of students who passed in both subjects = (100
Question : Directions: In the following question, some parts of the sentence may have some errors. Find out which part of the sentence has an error and select the appropriate option. If the sentence is free from error, select "No error".
The sea looks (1) / as if it has been (2) / agitated by a storm. (3) / No error (4)
Option 1: (1)
Option 2: (2)
Option 3: (3)
Option 4: (4)
Correct Answer: (2)
Solution : The error lies in the second part of the sentence.
The use of "as if" tells us that this is the case of the past subjunctive mood, and in this case, "has been" should be replaced with "had been" to make the sentence grammatically correct
Question : Directions: If Jhansi is 12 ahead in the rank of Prabha, who ranks 15th from last, then how many students are there in the class if Jhansi ranks 4th in order of merit?
Option 1: 23
Option 2: 27
Option 3: 30
Option 4: 31
Correct Answer: 30
Solution : Given: Jhansi is 12 ahead in the rank of Prabha, who ranks 15th from last, and Jhansi ranks 4th in order of merit.
Prabha's rank from last = 15 The rank of Jhansi from last = 15 + 12 = 27 The rank of Jhansi
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