CSAT 2022

# UPSC Prelims CSAT 2022 Solution

## Prelims CSAT 2022 Solution

**Click on Question to see Model Answer**

- How many seconds in total are there in x weeks, x days, x hours, x minutes and x seconds?
- The letters A, B, C, D and E are arranged in such a way that there are exactly two letters between A and E. How many such arrangements are possible?
- A has some coins. He gives half of the coins and 2 more to B. B gives half of the coins and 2 more to C. C gives half of the coins and 2 more to D. The number of coins D has now, is the smallest two- digit number. How many coins does A have in the beginning?
- A, B and C are three places such that there are three different roads from A to B, four different roads from B to C and three different roads from A to C. In how many different ways can one travel from A to C using these roads?
- On one side of a 1.01 km long road, 101 plants are planted at equal distance from each other. What is the total distance between 5 consecutive plants?
- X and Y run a 3 km race along a circular course of length 300 m. Their speeds are in the ratio 3:2. If they start together in the same direction, how many times would the first one pass the other (the start-off is not counted as passing)?
- The increase in the price of a certain item was 25%. Then the price was decreased by 20% and then again increased by 10%. What is the resultant increase in the price?
- Consider the Question and two Statements given below: Question: Is x an integer? Statement-1: x/3 is not an integer. Statement-2: 3x is an integer.
- How many 3-digit natural numbers (without repetition of digits) are there such that each digit is odd and the number is divisible by 5?
- In a tournament of Chess having 150 entrants, a player is eliminated whenever he loses a match. It is given that no match results in a tie/draw. How many matches are played in the entire tournament?
- If 15X14X13x…….X3X2X1=3mXn where m and n are positive integers, then what is the maximum value of m?
- The digits 1 to 9 are arranged in three rows in such a way that each row contains three digits, and the number formed in the second row is twice the number formed in the first row; and the number formed in the third row is thrice the number formed in the first row.
- Which number amongst 2^40, 3^21, 4^18 and 8^12 is the smallest?
- A bill for Rs. 1,840 is paid in the denominations of Rs. 50, Rs. 20 and Rs.10 notes. 50 notes in all are used. Consider the following statements:
- An Identity Card has the number ABCDEFG, not necessarily in that order, where each letter represents a distinct digit (1, 2, 4, 5, 7, 8. 9 only). The number is divisible by 9. After deleting the first digit from the right, the resulting number is divisible by 6. After deleting two digits from the right of original number, the resulting number is divisible by 5.
- The average weight of A, B, C is 40 kg, the average weight of B, D, E is 42 kg and the weight of F is equal to that of B What is the average weight of A, B, C, D, E and F?
- What is the number of numbers of the form 0.XY, where X and Y are distinct non-zero digits?
- The sum of three consecutive integers is equal to their product- How many such possibilities are there?
- There are 9 cups placed on a table arranged in equal number of rows and columns out of which 6 cups contain coffee and 3 cups contain tea. In how many ways can they be arranged so that each row should contain at least one cup of coffee?
- One non-zero digit, one vowel and one consonant from English alphabet (in capital) are to be used in forming passwords, such that each password has to start with a vowel and end with a consonant. How many such passwords can be generated?
- Let A, B and C represent distinct non- zero digits. Suppose x is the sum of all possible 3-digit numbers formed by A, B and C without repetition.
- A pie chart gives the expenditure on five different items A, B, C, D and. E in a household. If B, C, D and E correspond to 90°, 50°, 45° and 75° respectively, then what is the percentage of expenditure on item A?
- Consider the following statements in respect of two natural numbers p and q such that p is a prime number and q is a composite number:
- What is the smallest number greater than 1000 that when divided by any one of the numbers 6, 9. 12, 15, 18 leaves a remainder of 3?
- Let p be a two-digit number and q be the number consisting of same digits written in reverse order. If p × q = 2430, then what is the difference between p and q?
- Five friends P, Q, X, Y and Z purchased some notebooks. The relevant information is given below:
- When 70% of a number x is added to another number y, the sum becomes 165% of the value of y. When 60% of the number x is added to another number z, then the sum becomes 165% of the value of z. Which one of the following is correct?
- What is the remainder when 91 × 92× 93 ×94 ×95 ×96 ×97 ×98 ×99 is divided by 1261?
- There are eight equidistant points on a circle. How many right-angled triangles can be drawn sing these points as vertices and taking the diameter as one side of the triangle?
- There is a numeric lock which has a 3-digit PIN. The PIN contains digits 1 to 7. There is no repetition of digits. The digits in the PIN from left to right are in decreasing order. Any two digits in the PIN differ by at least 2. How many maximum attempts does one need to find out the PIN with certainty?
- Question: Is Z brother of X?
- Statement-1 : Some doctors are teachers. Statement-2 : All teachers are engineers Statement-3 : All engineers are scientists.
- Consider the Question and two Statements given below in respect of three cities P, Q and R in a State:
- Statement-1 : All pens are books. Statement-2 : No chair is a pen.
- P, Q, R, S, T and U are six members of a family. R is the spouse of Q. U is the mother of T and S is the daughter of U. P’s daughter is T and R’s son is P. There are two couples in the family.
- Two friends X and Y start running and they run together for 50 m in the same direction and reach a point. X turns right and runs 60 m, while Y turns left and runs 40 m. Then X turns left and runs 50 m and stops, while Y .turns right and runs 50 m and then stops. How far are the two friends from each other now?
- What is the value of X in the sequence 20, 10, 10, 15, 30, 75, X?
- If the order of the letters in the English alphabet is reversed and each letter represents the letter whose position it occupies, then which one of the following represents ‘LUCKNOW?
- Three persons A, B and C are standing in a queue not necessarily in the same order. There are 4 persons between A and B, and 7 persons between B and C If there are 11 persons ahead of C and 13 behind A, what could be the minimum number of persons in the queue?
- In the series AABABCABCDABCDE.., which letter appears at the 100th place?
- Which date of June 2099 among the following is Sunday?
- What is the value of X in the sequence 2, 12, 36, 80, 150, X?
- There are two containers X and Y. X contains 100 ml of milk and y contains 100 ml of water. 20 ml of milk from X is transferred to Y. After mixing well, 20 ml of the mixture in y is transferred back to X. If m denotes the proportion of milk in X and n denotes the proportion of water in Y, then which one of the following is correct?
- Consider the following statements: 1. Between 3:16 p.m. and 3:17 p.m., both hour hand and minute hand coincide. 2. Between 4:58 p.m. and 4:59 p.m., both minute hand and second hand coincide.
- Two candidates X and Y contested an election. 80% of voters cast their vote and there were no invalid votes. There was no NOTA (None of the above) option. X got 56% of the votes cast and won by 1440 votes. What is the total number of voters in the voters list?
- Six persons A, B, C, D, E and F are sitting equidistant from each other around a circular table (facing the centre of the table).
- A person X wants to distribute some pens among six children A, B, C, D, E and F. Suppose A gets twice the number of pens received by B, three times that of C, four times that of D, five times that of E and six times that of F.
- A man started from home at 14:30 hours and drove to village, arriving there when the village clock indicated 15:15 hours. After staying for 25 minutes, he drove back by a different route of length 1.25 times the first route at a rate twice as fast reaching home at 16:00 hours. As compared to the clock at home, the village clock is
- Consider the following statements in respect of a rectangular sheet of length 20 cm and breadth 8 cm:
- 24 men and 12 women can do a piece of work in 30 days. In how many days can 12 men and 24 women do the same piece of work?
- Six lectures A, B, C, D, E and F, each of one hour duration, are scheduled between 8:00 a.m. and 2:00 p.m.
- Question: What is the age of Manisha?
- To encourage research is one of the functions of a university.
- Unless the forces and tendencies which are responsible for destroying the country’s environment are checked in the near future and afforestation of denuded areas is taken up on a massive scale, the harshness of the climatic conditions and soil erosion by wind and water will increase to such an extent that agriculture, which is the mainstay of our people, will gradually become impossible.
- The main threat to maintaining progress in human development comes from the increasingly evident unsustainability of production and consumption patterns.
- The poverty line is quite unsatisfactory when it comes to grasping the extent of poverty in India.
- In simple matters like shoe-making, we think only a specially trained person will serve our purpose, but in politics, we presume that everyone who knows how to get votes knows how to administer a State.
- With steady economic growth, higher literacy and increasing skill levels, the number of Indian middle-class families has gone up exponentially.
- Natural selection cannot anticipate future environments on the earth.
- In some places in the world, the productivity of staples such as rice and wheat has reached a plateau.
- The demographic dividend, which has begun in India and is expected to last another few decades, is a great window of opportunity.
- For two or three generations past, ever- increasing numbers of individuals have been living as workers merely, not as human beings.
- If presents bring less thrill now that we are grown up, perhaps it is because we have too much already; or perhaps it is because we have lost the fullness of the joy of giving, and with it the fullness of the joy of receiving.
- In an economic organization, allowing mankind to benefit by the productivity of machines should lead to a very good life of leisure, and much leisure is apt to be tedious except to those who have intelligent activities and interests. If a leisured population is to be happy, it must be an educated population. and must be educated with a view to enjoyment as well as to the direct usefulness of technical knowledge.
- The social order is a sacred right which is the basis of all other rights. Nevertheless, this right does not come from nature, and must therefore be founded on conventions.
- The majority of people who fail to accumulate money sufficient for their needs, are generally, easily influenced by the opinions of others.
- How best can the problems of floods and droughts be addressed so that the losses are minimal and the system becomes resilient?

UPSC Factory App

UPSC PYQs Prelims & Mains with Solution, Past Paper PDF, CSAT Notes, Quotes, NCERT Books.