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Considering the alarming importance of CSAT in UPSC CSE Prelims exam and with enormous requests we received recently, InsightsIAS has started Daily CSAT Test to ensure students practice CSAT Questions on a daily basis. Regular Practice would help one overcome the fear of CSAT too.
We are naming this initiative as Insta– DART – Daily Aptitude and Reasoning Test. We hope you will be able to use DART to hit bull’s eye in CSAT paper and comfortably score 100+ even in the most difficult question paper that UPSC can give you in CSP-2021. Your peace of mind after every step of this exam is very important for us.
Looking forward to your enthusiastic participation (both in sending us questions and solving them on daily basis on this portal).
Wish you all the best ! 🙂
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Question 1 of 5
1. Question
Let A denotes the set of quadrilaterals having two diagonals equal and bisecting each other. Let B denotes the set of quadrilaterals having diagonals bisecting each other at 90. Then, A ∩ B denotes
Correct
Ans: c
A= diagonal equal and bisecting each other.
A is square or rectangle. And B diagonal bisecting each other at 90°.
So, A ∪ B = the set of square
Incorrect
Ans: c
A= diagonal equal and bisecting each other.
A is square or rectangle. And B diagonal bisecting each other at 90°.
So, A ∪ B = the set of square
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Question 2 of 5
2. Question
Out of 105 students taking an examination English and Mathematics, 80 students pass in English, 75 students fail students in both the subjects. How many students pass in only one subject?
Correct
Ans: d
Number of students failing in Mathematics
= 105-75
=30
Number of students tailing in English
= 105-80
=25
Number of students failing in 1 subject
= (25+30) – 10
= 45
Incorrect
Ans: d
Number of students failing in Mathematics
= 105-75
=30
Number of students tailing in English
= 105-80
=25
Number of students failing in 1 subject
= (25+30) – 10
= 45
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Question 3 of 5
3. Question
If A and B are any two non-empty subsets of a set E, then what is A ∪ (A ∩ B) equal to?
Correct
Ans: C
Since, A and B are non-empty subsets of E.
∴A∪(A ∩ B) = A ∪( Shaded portion)
= A
Incorrect
Ans: C
Since, A and B are non-empty subsets of E.
∴A∪(A ∩ B) = A ∪( Shaded portion)
= A
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Question 4 of 5
4. Question
If A is a non- empty subset of a set E, then what is E∪(A ∩ Ø) – (A – Ø) equal to? E ∪(A∩Ø) equal to?
Correct
Ans: c
E ∪[(A ∩Ø) – ( A -Ø)]
⇒E ∪[ Ø- A ] [Because (A ∩ Ø ) = fand (A – Ø)= A]
Here, A cannot be subtracted from f
Incorrect
Ans: c
E ∪[(A ∩Ø) – ( A -Ø)]
⇒E ∪[ Ø- A ] [Because (A ∩ Ø ) = fand (A – Ø)= A]
Here, A cannot be subtracted from f
-
Question 5 of 5
5. Question
Consider the following statements
- Set of points of a given line is a finite set.
- Intelligent students in a class is a set.
- Good books in a school library is a set.
Which of the above statement(s) is/are not correct?
Correct
Ans: d
- The set of points of a given line is not a finite set
- Here, we cannot decide, which students are intelligent
- Here, we cannot decide, which books are good a school library
Incorrect
Ans: d
- The set of points of a given line is not a finite set
- Here, we cannot decide, which students are intelligent
- Here, we cannot decide, which books are good a school library
