Staff Selection Commission Combined Graduate Level Exam
Question : In $\triangle \mathrm{ABC}$, $AB=20$ cm, $BC=7$ cm and $CA=15$ cm. Side $BC$ is produced to $D$ such that $\triangle \mathrm{DAB} \sim \triangle \mathrm{DCA}$. $DC$ is equal to:
Option 1: 9 cm
Option 2: 8 cm
Option 3: 10 cm
Option 4: 7 cm
Correct Answer: 9 cm
Solution : Given: AB = 20 cm BC = 7 cm CA = 15 cm and $\triangle DAB\sim\triangle DCA$ Let $CD\ =\ x$ and $AD\ =\ y$ Since $\triangle DAB\sim\triangle DCA$ ⇒ $\frac{AB}{AC}\ =\ \frac{DB}{AD}\ =\ \frac{AD}{DC}$ Take the first two parts of the equation, we
Question : Select the most appropriate meaning of the underlined idiom in the given sentence.
Pooja tried to explain the problem, but soon she tied herself up in knots.
Option 1: Be forced to explain your actions and (probably) punished.
Option 2: Become very confused when you are trying to explain something.
Option 3: Make no progress in an argument or discussion.
Option 4: Won't modify an opinion or agree to even small changes that another person wants.
Correct Answer: Become very confused when you are trying to explain something.
Solution : The correct choice is the second option.
Tied herself up in knots means to confuse someone, in this case, herself, so that she cannot explain clearly, which is correctly explained in the second option, which says,
Question : Match the columns.
Option 1: i-a, ii-b, iii-c, iv-d
Option 2: i-b, ii-a, iii-c, iv-d
Option 3: i-d, ii-c, iii-b, iv-a
Option 4: i-a, ii-c, iii-b, iv-d
Correct Answer: i-d, ii-c, iii-b, iv-a
Solution : The correct answer is i-d, ii-c, iii-b, iv-a.
Question : Which number among 24963, 24973, 24983, and 24993 is divisible by 7?
Option 1: 24973
Option 2: 24983
Option 3: 24963
Option 4: 24993
Correct Answer: 24983
Solution : Given numbers: 24963, 24973, 24983, and 24993. We know, a number is divisible by 7 if the difference between twice the unit digit of the number and the remaining part of the number is 0 or a multiple of 7. Here, for 24983 ⇒ (2498
Question : Who among the following teamed up with flautist Hariprasad Chaurasia and guitarist Brij Bhushan Kabra and produced a concept album, "Call of the Valley" (1967)?
Option 1: Tarun Bhattacharya
Option 2: Bhajan Sopori
Option 3: Shivkumar Sharma
Option 4: Satish Vyas
Correct Answer: Shivkumar Sharma
Solution : The correct option is Shivkumar Sharma.
The album "Call of the Valley" (1967) was a collaboration between Santoor player Pandit Shivkumar Sharma, flautist Hariprasad Chaurasia, and guitarist Brij Bhushan Kabra.
Question : Comprehension: Read the given passage and answer the questions that follow. Plato is the earliest important educational thinker, and education is an essential element in 'The Republic' (his most important work on philosophy and political theory, written around 360 B.C.). In it, he advocates some rather extreme methods: removing children from their mothers' care and raising them as wards of the state, and differentiating children suitable to the various castes, the highest receiving the most education, so that they could act as guardians of the city and care for the less able. He believed that education should be holistic, including facts, skills, physical discipline, music, and art. Plato believed that talent and intelligence are not distributed genetically and thus can be found in children born to all classes, although his proposed system of selective public education for an educated minority of the population does not really follow a democratic model.
Aristotle considered human nature, habit, and reason to be equally important forces to be cultivated in education, the ultimate aim of which should be to produce good and virtuous citizens. He proposed that teachers lead their students systematically, and that repetition be used as a key tool to develop good habits, unlike Socrates' emphasis on questioning his listeners to bring out their own ideas. He emphasized the balancing of the theoretical and practical aspects of subjects taught, among which he explicitly mentions reading, writing, mathematics, music, physical education, literature, history, and a wide range of sciences, as well as play, which he also considered important.
Question: What tool does Aristotle advocate to teachers to develop good habits in students?
Option 1: Writing
Option 2: Reading
Option 3: Questioning
Option 4: Repetition
Correct Answer: Repetition
Solution : The fourth option is the correct choice.
Aristotle advocates the use of repetition as a key tool for teachers to develop good habits in students.
Explanation: In the passage, it is mentioned that Aristotle proposed repetition as a crucial tool in education to cultivate good
Question : Directions: In the following question, find the odd number pair from the given alternatives.
Option 1: 4 – 16
Option 2: 8 – 24
Option 3: 14 – 26
Option 4: 16 – 36
Correct Answer: 14 – 26
Solution : Let's check the options – First option: 4 – 16; 4 ÷ 4 = 1; 16 ÷ 4 = 4 (Both the numbers are divisible by 4) Second option: 8 – 24; 8 ÷ 4 = 2; 24 ÷ 4 = 6
Question : Directions: From the given alternative words, select the word that cannot be formed using the letters of the given word. ENVIRONMENT
Option 1: OINTMENT
Option 2: MENTOR
Option 3: VENOM
Option 4: TRIM
Correct Answer: OINTMENT
Solution : Given: ENVIRONMENT
Now, let's compare all the option words with the word ENVIRONMENT – First option: OINTMENT; All the letters of OINTMENT are not present in the word ENVIRONMENT. There are two T in the word OINTMENT but only one T is present in the
Question : Directions: A sentence or a part of the sentence is printed in bold. Below are alternatives to the bold part that may improve the sentence. Choose the correct alternative. In case no improvement is needed, choose "No Improvement".
50 Chinese couples were married at a ceremony in Colombo to mark the anniversary of diplomat relations between two countries.
Option 1: 1
Option 2: 2
Option 3: 3
Option 4: 4
Correct Answer: 2
Diplomatic should replace diplomats in the sentence, as diplomats mean people who practice diplomacy, whereas diplomatic is an adjective that means concerning diplomacy, which in this case is the relationship between the two countries.
Therefore, the correct sentence
Question : If the average of 6 consecutive even numbers is 25, the difference between the largest and the smallest number is:
Option 1: 8
Option 2: 10
Option 3: 12
Option 4: 14
Correct Answer: 10
Solution : Let $(x–5),(x–3),(x–1),(x+1), (x+3)$ and $(x+5)$ be the 6 consecutive even numbers. Average of 6 consecutive even numbers = Average of two middle terms $25 = \frac{(x–1)+(x+1)}{2}$ ⇒ $x = 25$ Difference between the largest and the smallest number = $(x+5)–(x–5) = 30 – 20 =
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