CAT 2023 Slot 3 Question Paper

Instructions

There are only three female students - Amala, Koli and Rini - and only three male students - Biman, Mathew and Shyamal - in a course. The course has two evaluation components, a project and a test. The aggregate score in the course is a weighted average of the two components, with the weights being positive and adding to 1.

The projects are done in groups of two, with each group consisting of a female and a male student. Both the group members obtain the same score in the project.

The following additional facts are known about the scores in the project and the test.
1. The minimum, maximum and the average of both project and test scores were identical - 40, 80 and 60, respectively.
2. The test scores of the students were all multiples of 10; four of them were distinct and the remaining two were equal to the average test scores.
3. Amala’s score in the project was double that of Koli in the same, but Koli scored 20 more than Amala in the test. Yet Amala had the highest aggregate score.
4. Shyamal scored the second highest in the test. He scored two more than Koli, but two less than Amala in the aggregate.
5. Biman scored the second lowest in the test and the lowest in the aggregate.
6. Mathew scored more than Rini in the project, but less than her in the test.

CAT 2023 Slot 3 - Question 41


What was the weight of the test component?

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CAT 2023 Slot 3 - Question 42


What was the maximum aggregate score obtained by the students?

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CAT 2023 Slot 3 - Question 43


What was Mathew’s score in the test?

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CAT 2023 Slot 3 - Question 44


Which of the following pairs of students were part of the same project team?
i) Amala and Biman
ii) Koli and Mathew

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Instructions

For the following questions answer them individually

CAT 2023 Slot 3 - Question 45


If x is a positive real number such that $$x^8 + \left(\frac{1}{x}\right)^8 = 47$$, then the value of $$x^9 + \left(\frac{1}{x}\right)^9$$ is

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CAT 2023 Slot 3 - Question 46


Let n and m be two positive integers such that there are exactly 41 integers greater than $$8^m$$ and less than $$8^n$$, which can be expressed as powers of 2. Then, the smallest possible value of n + m is

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CAT 2023 Slot 3 - Question 47


For some real numbers a and b, the system of equations $$x + y = 4$$ and $$(a+5)x+(b^2-15)y=8b$$ has infinitely many solutions for x and y. Then, the maximum possible value of ab is

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CAT 2023 Slot 3 - Question 48


For a real number x, if $$\frac{1}{2}, \frac{\log_3(2^x - 9)}{\log_3 4}$$, and $$\frac{\log_5\left(2^x + \frac{17}{2}\right)}{\log_5 4}$$ are in an arithmetic progression, then the common difference is

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CAT 2023 Slot 3 - Question 49


Let n be any natural number such that $$5^{n-1} < 3^{n + 1}$$. Then, the least integer value of m that satisfies $$3^{n+1} < 2^{n+m}$$ for each such n, is

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CAT 2023 Slot 3 - Question 50


The sum of the first two natural numbers, each having 15 factors (including 1 and the number itself), is

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