Insta–DART (Daily Aptitude and Reasoning Test) 2020 - 21
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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
A survey was conducted on a samples of 1000 persons with reference to their knowledge of English, French and German. The results of the Survey are presented in the given Venn diagram. The ratio of the number of the persons who do not know any of the three languages to those who know all the three language, is
Correct
Sol. (b)
Total number of persons who know only English or French or German 200 + 180 + 170 = 550. Number of persons who know any two languages = 105 + 85 + 78 = 268
Number of persons who know all the three Languages = 175.
So, number of persons who know any of the Language = 550 + 268 + 175 = 993.
Number of persons who do not know any of the three language = 1000 – 993 = 7.
So, required ratio = 7/175 = 1/25
Incorrect
Sol. (b)
Total number of persons who know only English or French or German 200 + 180 + 170 = 550. Number of persons who know any two languages = 105 + 85 + 78 = 268
Number of persons who know all the three Languages = 175.
So, number of persons who know any of the Language = 550 + 268 + 175 = 993.
Number of persons who do not know any of the three language = 1000 – 993 = 7.
So, required ratio = 7/175 = 1/25
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Question 2 of 5
2. Question
Which one of the following Venn diagrams correctly illustrates the relationship among the classes; carrot, food, vegetable?
Correct
Sol. (a)
Both carrot and vegetable comes under the food category, while carrot comes under vegetable category. Hence, option (a) is the correct representation.
Incorrect
Sol. (a)
Both carrot and vegetable comes under the food category, while carrot comes under vegetable category. Hence, option (a) is the correct representation.
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Question 3 of 5
3. Question
In the given figure, the triangle represents girls, the square represents sports persons and the circle represents coaches. The portion in the figure which represents girls who are sports persons but not coaches is the one labelled, as
Correct
Sol. (b)
It is the common area between the triangle and the square, but excluding the circle, i.e., B.
Incorrect
Sol. (b)
It is the common area between the triangle and the square, but excluding the circle, i.e., B.
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Question 4 of 5
4. Question
In the given diagram, circle A represents teachers who can teach Physics, circle B represents teachers who can teach Chemistry and circle C represents those who can teach Mathematics. Among these, which represents teachers who can teach Physics and Mathematics but not Chemistry, is
Correct
Sol. (b)
It is the common area between A and C but not including B, i.e., u.
Incorrect
Sol. (b)
It is the common area between A and C but not including B, i.e., u.
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Question 5 of 5
5. Question
Which one of the following four logical diagrams represents correctly the relationship between musicians, instrumentalists, violinists?
Correct
Sol. (a)
The correct relationship between musicians,
instrumentalists and violinists is shown in following
Venn diagram.
Incorrect
Sol. (a)
The correct relationship between musicians,
instrumentalists and violinists is shown in following
Venn diagram.
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