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 class starts at 11:00 am and lasts till 2:27 pm. Four periods of equal duration are held during this interval. After every period, a rest of 5 minutes is given to the students. The exact duration of each period is:
Correct
Answer .a
Total time between 11.00 am and 2:27 pm
= ( 180 + 27 ) minutes
= 207 minutes
Three intervals of 5 minutes = 5 + 5 + 5
= 15 minutes.
Exact duration of each period = 207 – 15
= 192 minutes
There should be four intervals so :
= 48 minutes
Incorrect
Answer .a
Total time between 11.00 am and 2:27 pm
= ( 180 + 27 ) minutes
= 207 minutes
Three intervals of 5 minutes = 5 + 5 + 5
= 15 minutes.
Exact duration of each period = 207 – 15
= 192 minutes
There should be four intervals so :
= 48 minutes
Answer .a
Total time between 11.00 am and 2:27 pm
= ( 180 + 27 ) minutes
= 207 minutes
Three intervals of 5 minutes = 5 + 5 + 5
= 15 minutes.
Exact duration of each period = 207 – 15
= 192 minutes
There should be four intervals so :
= 48 minutes
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Question 2 of 5
2. Question
- Four friends A, B, C and D need to cross a bridge. A maximum of two persons can cross it at a time. It is night and they just have one lamp. Persons that cross the bridge must carry the lamp to find the way. A pair must walk together at the speed of slower person. After crossing the bridge, the person having faster speed in the pair will return with the lamp each time to accompany another person in the group. Finally, the lamp has to be returned at the original place and the person who returns the lamp has to cross the bridge again without lamp. To cross the bridge, the time taken by them is as follows : A: 1 minute, B: 2 minutes, C: 7 minutes and D: 10 minutes. What is the total minimum time required by all the friends to cross the bridge?
Correct
Answer .a
There are four persons
A, B, C, D
So Now :
Total minimum time = 3 + 2 + 10
= 21 minutes
Incorrect
Answer .a
There are four persons
A, B, C, D
So Now :
Total minimum time = 3 + 2 + 10
= 21 minutes
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Question 3 of 5
3. Question
30g of sugar was mixed in 180 ml water in a vessel A, 40 g of sugar Was mixed in 280 ml of water in vessel B and 20 g of sugar was mixed in 100 ml of water in vessel C. The solution in vessel B is
Correct
Answer .d
For A :
30/180 = 1/6
For B :
480/280=1/7
For C:
20/100=1/5
Less sweet than that is C
Incorrect
Answer .d
For A :
30/180 = 1/6
For B :
480/280=1/7
For C:
20/100=1/5
Less sweet than that is C
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Question 4 of 5
4. Question
In aid of charity, every student in a class contributes as many rupees as the number of students in that class. With the additional contribution of Rs. 2 by one student only, the total collection is Rs. 443. Then how many students are there in the class?
Correct
Answer .b
Let the students be = S
Rupees = r
Now According to Question :
S = r
S * r + 2 = 443
S * S + 2 = 443 (as we know S = r )
S2 = 443 – 2
S2 = 441
S =√441 = 21
Incorrect
Answer .b
Let the students be = S
Rupees = r
Now According to Question :
S = r
S * r + 2 = 443
S * S + 2 = 443 (as we know S = r )
S2 = 443 – 2
S2 = 441
S =√441 = 21
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Question 5 of 5
5. Question
- Anita’s mathematics test had 70 problems carrying equal marks i.e., 10 arithmetic, 30 algebra and 30 geometry. Although she answered 70% of the arithmetic, 40% of the algebra and 60% of the geometry problems correctly, she did not pass the test because she got less than 60% marks. The number of more questions she would have to answer correctly to earn a 60% passing marks is:
Correct
Answer .b
Total problems = 70Total Questions Attempted Questions Arithmetics 10 70% 7 Questions Algebra 30 40% 12 Questions Geometry 30 60% 18 Questions 37 Questions Now : For passing she should have
To score 60% of total Questions
60/100*70
= 42 Questions
She attempted = 37 Questions
Now : 42 – 37
= 5 ( She failed ) by 5 Questions only.
Incorrect
Answer .b
Total problems = 70Total Questions Attempted Questions Arithmetics 10 70% 7 Questions Algebra 30 40% 12 Questions Geometry 30 60% 18 Questions 37 Questions Now : For passing she should have
To score 60% of total Questions
60/100*70
= 42 Questions
She attempted = 37 Questions
Now : 42 – 37
= 5 ( She failed ) by 5 Questions only.
