Mathematics
Question : Comprehension:
Read the following passage and answer the questions that follow.
Indian mathematician Nikhil Srivastava, working at the University of California in Berkeley, is among the winners of the Prestigious 2021 Michael and Sheila Held Prize, announced last week by the US National Academy of Sciences (NAS). Adam W. Marcus, EPFL (Swiss Federal Institute of Technology, Lausanne), and Daniel Alan Spielman, Yale University, are the other two winners.
"Marcus, Spielman, and Srivastava solved longstanding questions on the Kadison-Singer problem and on Ramanujan graphs, and in the process, they uncovered a deep new connection between linear algebra, the geometry of polynomials, and graph theory that has inspired the next generation of theoretical computer scientists," the NAS said in a statement.
An Indian national, Nikhil was born in New Delhi in November 1983 and has attended educational institutions across the world—Syria, the UK, Saudi Arabia, and the US—as his father was an Indian Foreign Services officer, who has served as the Indian ambassador to Uganda and Denmark. At present, Nikhil is an associate professor of mathematics at UC Berkeley. The Michael and Sheila Held Prize is presented annually to honour outstanding, innovative, creative, and influential research in the area of combinatorial mathematics.
Question: What is the connection between the prize winners and the famous Indian mathematical genius Ramanujan?
Option 1: They explained Ramanujan's graphs in solving the Kadison-Singer problem.
Option 2: The prize winners were all admirers of Ramanujan's great contribution.
Option 3: The prize winners were all students of Ramanujan.
Option 4: They solved questions on Ramanujan's graphs that had not been solved for a long time.
Correct Answer: They solved questions on Ramanujan's graphs that had not been solved for a long time.
Solution : The correct choice is the fourth option.
As stated in the second paragraph of the passage, the prize winners, Marcus, Spielman, and Srivastava, solved longstanding questions on the Kadison-Singer problem and on Ramanujan graphs.
Therefore, the correct answer is: They solved questions on Ramanujan's graphs that had not been solved for a long time.
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 habits in students. Unlike Socrates, who emphasised questioning to bring out individuals' ideas, Aristotle believed in systematically leading students and using repetition as a means to reinforce and establish positive habits.
Hello,
Unfortunately, you won't be eligible for the BCA program at Aliah University because the eligibility criteria for BCA is that the applicants are required to achieve a 10+2 score in each specialization (Arts, Commerce, Science) by a recognized body with an overall grade of 50. Applicants must have English and Maths as compulsory subjects in 12th grade.
Hope this helps,
Thank you
Question: Which of these methods is NOT advocated in 'The Republic'?
Option 1: Differentiating children based on castes
Option 2: Imparting similar education to all children
Option 3: Bringing up children under state guardianship
Option 4: Keeping children away from mothers
Correct Answer: Imparting similar education to all children
Solution : The second option is the correct choice.
The method not advocated in The Republic is imparting similar education to all children.
Explanation: In the given passage, it is mentioned that in The Republic, Plato advocates some rather extreme methods, including removing children from their mothers' care raising them as wards of the state and differentiating children suitable to the various castes.
Plato believed in a hierarchical system where the highest caste received the most education to act as guardians of the city.
Question : Study the following table and answer the question that follows. A school has four sections A, B, C, and D of Class IX students. The results of the Science and Mathematics examinations are shown in the following table.
Section A
What is the ratio of the number of students who failed in Science but passed in Mathematics of section B and section D together to the number of students of section A that passed in both subjects?
Option 1: 9 : 17
Option 2: 3 : 7
Option 3: 4 : 9
Option 4: 5 : 11
Correct Answer: 3 : 7
Solution : Number of students who failed in Science but passed in Mathematics of section B and section D together = 12 + 15 = 27 Number of students in section A passed in both subjects = 63 Ratio = 27 : 63 = 3 : 7 Hence, the correct answer is 3 : 7.
Question : Directions: Five books of History, Mathematics, English, Hindi, and Science are kept on top of each other. English is kept between History and Mathematics. Hindi and Science are kept together. Science is kept above Mathematics. Which book is kept in the middle?
Option 1: Mathematics
Option 2: English
Option 3: Science
Option 4: Mathematics or English
Correct Answer: Mathematics
Solution : Given: English is kept between History and Mathematics.
Science is kept above Mathematics. Hindi and Science are kept together.
So, the order becomes →
Mathematics is kept in the middle. Hence, the first option is correct.
Hi aspirant,
MBA entrance exams, like CAT and XAT, have a quantitative section that can be challenging for those weak in maths. Other entrance exams like SNAP, NMAT, etc., are slightly easier and are a good option for those weak in math.
I would suggest you practice quant every day and give more time to your weaknesses. You can definitely pursue an MBA and even score well on the management entrance exams if you are dedicated and hardworking. Both smart work and hard work are the keys to success.
All the best!
Question : Directions: Six books Hindi, Biology, Mathematics, Economics, Physics, and Chemistry are placed in two racks facing each other with three books in each rack. Hindi and Chemistry are in the same rack but are not neighbours. Biology is placed exactly opposite to Economics. Biology is just left of Hindi facing the South direction. Physics is exactly opposite to Chemistry. Which of the following is placed exactly opposite to Hindi?
Option 1: Chemistry
Option 2: Economics
Option 3: Biology
Option 4: Mathematics
Solution : 1. Biology is just left of Hindi facing the South direction. Hindi and Chemistry are in the same rack but are not neighbours. 2. Biology is placed exactly opposite to Economics. Physics is exactly opposite to Chemistry.
So, Mathematics is the opposite of Hindi. Hence, the fourth option is correct.
Question : Who among the following persons of Indian origin was in the news in December 2021 for solving the Kadison-Singer 1959 problem in the field of mathematics?
Option 1: Nikhil Srivastava
Option 2: Nikhil Sachdev
Option 3: Satya Nadella
Option 4: Pratap Bhanu Mehta
Correct Answer: Nikhil Srivastava
Solution : The correct answer is Nikhil Srivastava.
Indian-American mathematician Nikhil Srivastava and the two other awardees are Adam Marcus and Daniel Spielman. The award recognises their highly original work that introduced and developed methods for understanding the characteristics of polynomial matrices.
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