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).
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Question 1 of 5
1. Question
The population of a city in 2020 increased by 12.5% from 2019 and in 2021 decreases by 8% with respect to previous year. And in 2022 it again increased by 15% with respect to previous year if in 2022, the population of the city is 2380500, then what was the population of the city in 2019?
Correct
Answer: (a) 2000000
Explanation:
Let consider population of the city in 2019=x
Then,
,x* 9/8*92/100*115/100=2380500
On solving we get x= 2000000
Incorrect
Answer: (a) 2000000
Explanation:
Let consider population of the city in 2019=x
Then,
,x* 9/8*92/100*115/100=2380500
On solving we get x= 2000000
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Question 2 of 5
2. Question
In a school 16(2/3)% students were interested in dance only, 33(1/3)% were interested in music only , 25% were interested in football and rest were interested in other activities. If number of who are interested in other activities is 900 then what is the number of students who are interested in dance.
Correct
Answer:(d) 600
Explanation:
Let the number of students in school is 100%
Then
Number of students interested in other activities is
=100%-(50/3 + 100/3 + 25)%
=75/3 %
=25%
This 25%=900
100%=?
On solving we get 100%=900/25 *100=3600
Students were interested in dance only=3600/6 =600
Incorrect
Answer:(d) 600
Explanation:
Let the number of students in school is 100%
Then
Number of students interested in other activities is
=100%-(50/3 + 100/3 + 25)%
=75/3 %
=25%
This 25%=900
100%=?
On solving we get 100%=900/25 *100=3600
Students were interested in dance only=3600/6 =600
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Question 3 of 5
3. Question
Present population of town P and Q is in the ratio 8:7. Present population of town Q is 14000 and it increased by 20% and 14(2/7)% in next two year. Now the population ratio of town Q to P is 24:25. Find increment in population of town P.
Correct
Answer: ()
Explanation:
P:Q
8x:7x
7x=14000
,x=2000
Population of the city P before increment=16000
Population of the city Q ,
after increment=14000*6/5*8/7=19200=Q
after increment population ratio of P:Q=25:24
then we get population of the city P after increment=20000
then total increment of the city P= 20000-16000=4000
Incorrect
Answer: ()
Explanation:
P:Q
8x:7x
7x=14000
,x=2000
Population of the city P before increment=16000
Population of the city Q ,
after increment=14000*6/5*8/7=19200=Q
after increment population ratio of P:Q=25:24
then we get population of the city P after increment=20000
then total increment of the city P= 20000-16000=4000
Lithium mining in the Atacama Desert has been linked to severe environmental impacts, including contamination of ecosystems and exacerbation of water scarcity. The Atacama Desert is already the driest place on Earth, and lithium extraction further strains its limited freshwater resources. Additionally, the process can harm local biodiversity, including species like flamingos that rely on the desert’s fragile ecosystems.
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Question 4 of 5
4. Question
Sudeep scored 56% of total marks and passed an exam by 20 marks, while Ramesh scored 48% of total marks but failed by 12 marks , what is the pass percentage?
Correct
Answer: (d) 51%
Explanation:
56x/100 -20=48x/100 +12
8x/100=32
On solving we get x= 400
Marks of Sudeep=56x/100=56*400/100=224
Passing marks=224-20=204
Pass%=204/400*100=51%
Incorrect
Answer: (d) 51%
Explanation:
56x/100 -20=48x/100 +12
8x/100=32
On solving we get x= 400
Marks of Sudeep=56x/100=56*400/100=224
Passing marks=224-20=204
Pass%=204/400*100=51%
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Question 5 of 5
5. Question
In a village election of two candidates, 80% of the people cast their votes out of which 120 votes are invalid. He winner gets 37,5% of the total people votes and won by only 30 votes. Then find the number of people who don’t cast their votes?
Correct
Answer: (a) 360
Explanation:
Let the number of people in the village be x
Valid votes=80x/100 -120=4x/5 -120
ATQ,
3x/8 + (3x/8 -30)=4x/5 -120
,x=1800
No of people who do not cast their votes =1800*20/100=360
Incorrect
Answer: (a) 360
Explanation:
Let the number of people in the village be x
Valid votes=80x/100 -120=4x/5 -120
ATQ,
3x/8 + (3x/8 -30)=4x/5 -120
,x=1800
No of people who do not cast their votes =1800*20/100=360
