UPSC Prelims 2019 Question Paper & Analysis
Get UPSC Prelims Previous Year Question (PYQ) Papers with detailed explanations, mindmaps, organized year-wise and subject-wise for CSAT.
PYQs with Detailed Answers
- View Answer for: If x is greater than or equal to 25 and y is less than or equal to 40, then which one of the following is always correct?
If x is greater than or equal to 25 and y is less than or equal to 40, then which one of the following is always correct?
- View Answer for: In a school, 60% of students play cricket. A student who does not play cricket plays football. Every football player has got a two-wheeler.Which of the following conclusions cannot be drawn from the above data? 60% of the students do not have two-wheelers. No cricketer has a two-wheeler. Cricket players do not play football.Select the correct answer using the code given below:
In a school, 60% of students play cricket. A student who does not play cricket plays football. Every football player has got a two-wheeler.
Which of the following conclusions cannot be drawn from the above data?
- 60% of the students do not have two-wheelers.
- No cricketer has a two-wheeler.
- Cricket players do not play football.
Select the correct answer using the code given below:
- View Answer for: Consider the following sequence that follows some arrangement: $c\accaa\aa\bc\b$ The letters that appear in the gaps are
Consider the following sequence that follows some arrangement: The letters that appear in the gaps are
- View Answer for: A started from his house and walked $20$ m towards East, where his friend ‘B’ joined him. They together walked $10$ m in the same direction. Then ‘A’ turned left while ‘B’ turned right and travelled $2$ m and $8$ m respectively. Again ‘B’ turned left to travel $4$ m followed by $5$ m to his right to reach his office. ‘A’ turned right and travelled $12$ m to reach his office. What is the shortest distance between the two offices?
A started from his house and walked m towards East, where his friend ‘B’ joined him. They together walked m in the same direction. Then ‘A’ turned left while ‘B’ turned right and travelled m and m respectively. Again ‘B’ turned left to travel m followed by m to his right to reach his office. ‘A’ turned right and travelled m to reach his office. What is the shortest distance between the two offices?
- View Answer for: In a conference, out of a total of 100 participants, 70 are Indians. If 60 of the total participants are vegetarian, then which of the following statements is/are correct? At least 30 Indian participants are vegetarian. At least 10 Indian participants are non-vegetarian.Select the correct answer using the codes given below:
In a conference, out of a total of 100 participants, 70 are Indians. If 60 of the total participants are vegetarian, then which of the following statements is/are correct?
- At least 30 Indian participants are vegetarian.
- At least 10 Indian participants are non-vegetarian.
Select the correct answer using the codes given below:
Six students A, B, C, D, E, and F appeared in several tests. Either C or F scores the highest. Whenever C scores the highest, then E scores the least. Whenever F scores the highest, B scores the least. In all the tests they got different marks; D scores higher than A, but they are close competitors; A scores higher than B; C scores higher than A.
View Answer for: If F stands second in the ranking, then the position of B isIf F stands second in the ranking, then the position of B is
Read the following statements S1 and S2 and answer the two items that follow:
S1: Twice the weight of Sohan is less than the weight of Mohan or that of Rohan. S2: Twice the weight of Rohan is greater than the weight of Mohan or that of Sohan.
View Answer for: Based on the above, which one of the following statements is correct?Based on the above, which one of the following statements is correct?
- View Answer for: Consider two statements S1 and S2 followed by a question:S1: $p$ and $q$ both are prime numbers. S2: $p + q$ is an odd integer.Question: Is $pq$ an odd integer?
Consider two statements S1 and S2 followed by a question:
S1: and both are prime numbers. S2: is an odd integer.
Question: Is an odd integer?
- View Answer for: Which year has the same calendar as that of 2009?
Which year has the same calendar as that of 2009?
- View Answer for: Each face of a cube can be painted in black or white colours. In how many different ways can the cube be painted?
Each face of a cube can be painted in black or white colours. In how many different ways can the cube be painted?
- View Answer for: A solid cube is painted yellow, blue and black such that opposite faces are of same colour. The cube is then cut into 36 cubes of two different sizes such that 32 cubes are small and the other four cubes are big. None of the faces of the bigger cubes is painted blue. How many cubes have only one face painted?
A solid cube is painted yellow, blue and black such that opposite faces are of same colour. The cube is then cut into 36 cubes of two different sizes such that 32 cubes are small and the other four cubes are big. None of the faces of the bigger cubes is painted blue. How many cubes have only one face painted?
- View Answer for: Mr ‘X’ has three children. The birthday of the first child falls on the 5th Monday of April, that of the second one falls on the 5th Thursday of November. On which day is the birthday of his third child, which falls on 20th December?
Mr ‘X’ has three children. The birthday of the first child falls on the 5th Monday of April, that of the second one falls on the 5th Thursday of November. On which day is the birthday of his third child, which falls on 20th December?
- View Answer for: What is X in the sequence 4, $196$, 16, $144$, 36, $100$, 64, X?
What is X in the sequence 4, , 16, , 36, , 64, X?
- View Answer for: What is X in the sequence 132, 129, 124, 117, 106, 93, $X$?
What is X in the sequence 132, 129, 124, 117, 106, 93, ?
- View Answer for: A wall clock moves 10 minutes fast in every 24 hours. The clock was set right to show the correct time at 8:00 a.m. on Monday. When the clock shows the time 6:00 p.m. on Wednesday, what is the correct time?
A wall clock moves 10 minutes fast in every 24 hours. The clock was set right to show the correct time at 8:00 a.m. on Monday. When the clock shows the time 6:00 p.m. on Wednesday, what is the correct time?
- View Answer for: If \$ means ‘divided by’; @ means ‘multiplied by’; # means ‘minus’, then the value of \$10#5@1\$5$ is
If $ means ‘divided by’; @ means ‘multiplied by’; # means ‘minus’, then the value of $10#5@1$5$ is
Read the following statements S1 and S2 and answer the two items that follow:
S1: Twice the weight of Sohan is less than the weight of Mohan or that of Rohan. S2: Twice the weight of Rohan is greater than the weight of Mohan or that of Sohan.
View Answer for: Which one of the following statements is correct?Which one of the following statements is correct?
Six students A, B, C, D, E, and F appeared in several tests. Either C or F scores the highest. Whenever C scores the highest, then E scores the least. Whenever F scores the highest, B scores the least. In all the tests they got different marks; D scores higher than A, but they are close competitors; A scores higher than B; C scores higher than A.
View Answer for: If E is ranked third, then which one of the following is correct?If E is ranked third, then which one of the following is correct?
- View Answer for: If every alternative letter of the English alphabet from B onwards (including B) is written in lower case (small letters) and the remaining letters are capitalized, then how is the first month of the second half of the year written?How is the first month of the second half of the year written?
If every alternative letter of the English alphabet from B onwards (including B) is written in lower case (small letters) and the remaining letters are capitalized, then how is the first month of the second half of the year written?
How is the first month of the second half of the year written?
- View Answer for: Consider the following Statements and Conclusions:Statements-1: Some rats are cats. Statements-2: Some cats are dogs. Statements-3: No dog is a cow.Conclusions-I: No cow is a cat. Conclusions-II: No dog is a rat. Conclusions-III: Some cats are rats.Which of the above conclusions is/are drawn from the statements?
Consider the following Statements and Conclusions:
Statements-1: Some rats are cats. Statements-2: Some cats are dogs. Statements-3: No dog is a cow.
Conclusions-I: No cow is a cat. Conclusions-II: No dog is a rat. Conclusions-III: Some cats are rats.
Which of the above conclusions is/are drawn from the statements?
- View Answer for: A five-storeyed building with floors from I to V is painted using four different colours and only one colour is used to paint a floor. Consider the following statements: The middle three floors are painted in different colours. The second (II) and the fourth (IV) floors are painted in different colours. The first (I) and the fifth (V) floors are painted red.To ensure that any two consecutive floors have different colours:
A five-storeyed building with floors from I to V is painted using four different colours and only one colour is used to paint a floor. Consider the following statements:
- The middle three floors are painted in different colours.
- The second (II) and the fourth (IV) floors are painted in different colours.
- The first (I) and the fifth (V) floors are painted red.
To ensure that any two consecutive floors have different colours:
- View Answer for: In a group of 15 people; 7 can read French, 8 can read English while 3 of them can read neither of these two languages. The number of people who can read exactly one language is
In a group of 15 people; 7 can read French, 8 can read English while 3 of them can read neither of these two languages. The number of people who can read exactly one language is
- View Answer for: All members of a club went to Mumbai and stayed in a hotel. On the first day, $80\%$ went for shopping and $50\%$ went for sightseeing, whereas $10\%$ took a rest in the hotel.Which of the following conclusion(s) can be drawn from the above data? $40\%$of members went for shopping as well as sightseeing. $20\%$of members went for only shopping.Select the correct answer using the code given below:
All members of a club went to Mumbai and stayed in a hotel. On the first day, went for shopping and went for sightseeing, whereas took a rest in the hotel.
Which of the following conclusion(s) can be drawn from the above data?
- of members went for shopping as well as sightseeing.
- of members went for only shopping.
Select the correct answer using the code given below:
- View Answer for: In the sequence 1, 5, 7, 3, 5, 7, 4, 3, 5, 7, how many such 5s are there which are not immediately preceded by 3 but are immediately followed by 7?
In the sequence 1, 5, 7, 3, 5, 7, 4, 3, 5, 7, how many such 5s are there which are not immediately preceded by 3 but are immediately followed by 7?
- View Answer for: A joint family consists of seven members A, B, C, D, E, F, and G with three females. G is a widow and sister-in-law of D’s father F. B and D are siblings, and A is the daughter of B. C is cousin of B. Who is E? Wife of F Grandmother of A Aunt of CSelect the correct answer using the code given below:
A joint family consists of seven members A, B, C, D, E, F, and G with three females. G is a widow and sister-in-law of D’s father F. B and D are siblings, and A is the daughter of B. C is cousin of B. Who is E?
- Wife of F
- Grandmother of A
- Aunt of C
Select the correct answer using the code given below:
Six students A, B, C, D, E, and F appeared in several tests. Either C or F scores the highest. Whenever C scores the highest, then E scores the least. Whenever F scores the highest, B scores the least. In all the tests they got different marks; D scores higher than A, but they are close competitors; A scores higher than B; C scores higher than A.
View Answer for: If B scores the least, the rank of C will beIf B scores the least, the rank of C will be
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