UPSC CSAT : CSAT 2021 APTITUDE MODEL QUESTION AND ANSWERS

Saturday 2 January 2021

CSAT 2021 APTITUDE MODEL QUESTION AND ANSWERS

Two Statements S 1 and S2 are given below with regard to four numbers P, Q, R and S followed by a Question: Statements 

S1: R is greater-than P as well as Q. 

S2: S is not the largest one. 

Question: Among four numbers P, Q, R and S which one is the largest? Which one of the following is correct in respect of the above Statements and the Question? 

(a) S1 alone is sufficient to answer the Question. 

(b) S2 alone is sufficient to answer the Question. 

(c) S1 and S2 together are sufficient to answer the Question, but neither S1 alone nor S2 alone is sufficient to answer the Question. 

(d) S1 and s2 together are not sufficient to answer the Question. 

Answer: (c)

Two Statements Si and S2 are given below followed by a Question: Statements: 

S1: n is a prime number.

S2: n leaves a remainder of 1 when divided by 4. Question: If n is a unique natural number between 10 and 20, then what is n? Which one of the following is correct in respect of the above Statements and the Question? 

(a) S1 alone is sufficient to answer the Question. 

(b) S2 alone is sufficient to answer the Question. 

(c) S1 and S2 together are sufficient to answer the Question, but neither S1 alone nor S2 alone is sufficient to answer the Question. 

(d) S1 and S2 together are not sufficient to answer the Question. 

Answer: (d) 

Two Statements S1 and S2 are given below with regard to two numbers followed by a Question: Statements: 

S1: Their product is 21. 

S2: Their sum is 10. Question: What are the two numbers? Which one of the following is correct in respect of the above Statements and the Question? 

(a) S1 alone is sufficient to answer the Question. 

(b) S2 alone is sufficient to answer the Question. 

(c) S1 and S2 together are sufficient to answer the Question, but neither S1 alone nor S2 alone is sufficient to answer the Question. 

(d) S1 and S2 together are not sufficient to answer the Question. 

Answer: (c) 

A man walks down the backside of his house straight 25 meters, then turns to the right and walks 50 meters again; then he turns towards left and again walks 25 meters. If his house faces to the East, what is his direction from the starting point? 

(a) South-East 

(b) South-west 

(c) North-East 

(d) North-west 

Answer: (d) 

Two Statements are given followed by two Conclusions: Statements: All numbers are divisible by 2. All numbers are divisible by 3. Conclusion-I All numbers are divisible by 6. Conclusion-Il All numbers are divisible by 4. 

Which of the above Conclusions logically follows/follow from the two given Statements? 

(a) Only Conclusion-I 

(b) Only Conclusion-II 

(c) Neither Conclusion-I nor conclusion-II 

(d) Both Conclusions-I and Conclusion-II 

Answer: (a)

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