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Prelims

UPSC Prelims Questions

Practice UPSC Prelims MCQs by subject and year. Free questions with explanations for focused revision.

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  2. /Prelims Questions
Q.307·Miscellaneous·2025·Easy

The office memorandum directed personnel to minimise their consumption of office stationery by up to twenty percent. Select the most appropriate option that is an improvement of the underlined word in the context of the sentence, and mark your response on the Answer Sheet accordingly.

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Q.308·Miscellaneous·2025·Easy

Given that 100n/100×99×98×...×3×2×1​ is an integer. What is the largest value of n for which this is true?

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Q.309·Miscellaneous·2025·Easy

The scurrilous remarks in the article were met with great joy by the leadership of the company. Select the most appropriate option that is an improvement of the underlined word in the context of the sentence, and mark your response on the Answer Sheet accordingly.

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Q.310·Miscellaneous·2025·Easy

The announcement of an unexpected bonus led to great tumult among the staff. Select the most appropriate option that is an improvement of the underlined word in the context of the sentence, and mark your response on the Answer Sheet accordingly.

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Q.311·Miscellaneous·2025·Easy

The ratio of sum of two numbers to their difference is 5:1. What is the ratio of the sum of their squares to the difference of their squares?

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Q.312·Miscellaneous·2025·Easy

The perimeter of a triangle ABC is 105 cm. The altitudes AD, BE and CF are in the ratio 3:5:6. What is the approximate area of the triangle ABC?

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Q.313·Miscellaneous·2025·Easy

A question is given followed by two statements I and II. Consider the questions and the statements and tick the correct option. If the (p+ q)^2 - 4pq, Where p, q are natural numbers, positive? Statement I- p < q, Statement II- p > q Which one of the following option is correct in respect of above question and the statement?

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Q.314·Miscellaneous·2025·Easy

In a certain code if 64 is written as 343 and 216 is written as 729, then how is 512 written in that code?

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Q.315·Miscellaneous·2025·Easy

What is X in the sequence 1,3, 6, 11, 18, X, 42 ?

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Q.316·Miscellaneous·2025·Easy

Which one of the following is NOT a basic property of electric charge?

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Q.317·Miscellaneous·2025·Easy

X can complete one-third of a certain work in6 days. Y can complete one-third of the same work in 8 days and Z can complete three-fourth of the same work in 12 days. All of them work together for n days and then X and Z quit and Y alone finishes the remaining work in 16/3 days. What is n equal to?

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Q.318·Miscellaneous·2025·Easy

Over the next 30 years, many countries are promising to move to net-zero carbon, implying that household emissions will have to be cut to close to nothing. A leading climate scientist reckons that, at best, half the reduction might be achieved through demand-side measures, such as behavioural changes by individuals and households. And even that would require companies and governments to provide more incentives to change through supply-side investments to make low-carbon options cheaper and more widely available. Which one of the following statements best reflects the central idea conveyed by the passage?

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Q.319·Miscellaneous·2025·Easy

The average of three numbers p, q and r is k. p is as much more than the average as q is less than the average. What is the value of r?

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Q.320·Miscellaneous·2025·Easy

The 5 - digit number PQRST (all distinct digits is such that T = 0. P is there T. S is greater than Q by 4, while Q is greater than R by 3. How many such 5-digit number are possible ?

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Q.321·Miscellaneous·2025·Easy

In a T20 cricket match, three players X, Y and Z scored a total of 37 runs. The ratio of number of runs scored by X to the number of runs scored by Y is equal to ratio of number of runs scored by Y to number of runs scored by Z. Value-I = Runs scored by X Value-II = Runs scored by Y Value-III = Runs scored by Z Which one of the following is correct?

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Q.322·Miscellaneous·2025·Easy

Let p + q = 10, where p, q are integers. Value-I = Maximum value of p x q when p, q are positive integers. Value-II = Maximum value of p x q when p≥-6, q≥-4. Which one of the following is correct?

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Q.323·Miscellaneous·2025·Easy

Two bodies of unequal masses are dropped from a tower. At any instant, they have equal

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Q.324·Miscellaneous·2025·Easy

What happens when the sunlight travels through the Earth’s atmosphere?

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