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 CSP2021. 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
When 60% of a number A is added to another number B, B becomes 175% of its previous value. Then which of the following is true regarding the values of A and B?
Correct
Answer : d
B+ 60% of A = 175% of B→
60% of A = 75% of B
i.e 0.6A = 0.75B
A/B = 5/4
Apparently it seems that A is bigger, but if you consider A and B to be negative the opposite would be true.
Hence, option (d) is correct.
Incorrect
Answer : d
B+ 60% of A = 175% of B→
60% of A = 75% of B
i.e 0.6A = 0.75B
A/B = 5/4
Apparently it seems that A is bigger, but if you consider A and B to be negative the opposite would be true.
Hence, option (d) is correct.

Question 2 of 5
2. Question
At an election, the candidate who got 56% of the votes cast won by 144 votes. Find the total number of voters on the voting list if 80% people cast their vote and there were no invalid votes.
Correct
Answer : d
The winning candidate gets 56% of the votes cast and the losing candidate gets 44% of the votes cast.
Thus, the gap between the two is 12% of the votes cast = 144 votes. Thus, the votes cast = 1200. Since, this is 80% of the number of voters on the voting list, the number of people on the voting list = 1200/0.8
= 1500.
Incorrect
Answer : d
The winning candidate gets 56% of the votes cast and the losing candidate gets 44% of the votes cast.
Thus, the gap between the two is 12% of the votes cast = 144 votes. Thus, the votes cast = 1200. Since, this is 80% of the number of voters on the voting list, the number of people on the voting list = 1200/0.8
= 1500.

Question 3 of 5
3. Question
The population of a village of is 1,00,000. The rate of increase is 10% per annum. Find the population at the start of the third year.
Correct
Answer : b
Incorrect
Answer : b

Question 4 of 5
4. Question
The population of the village of Gavas is 10,000 at this moment. It increases by 10% in the first year. However, in the second year, due to immigration, the population drops by 5%. Find the population at the end of the third year if in the third year the population increases by 20%.
Correct
Answer : b
10000 → 11000 (after a 10% increase) → 10450 (after a 5% decrease) → 12540 (after a 20% increase)
Incorrect
Answer : b
10000 → 11000 (after a 10% increase) → 10450 (after a 5% decrease) → 12540 (after a 20% increase)

Question 5 of 5
5. Question
A man invests 10,000 in some shares in the ratio 2:3:5 which pay dividends of 10%, 25% and 20% (on his investment) for that year respectively. Find his dividend income.
Correct
Answer : d
His investments are 2000, 3000 and 5000 respectively. His dividends are: 200, 750 and 1000, which means total dividend = 1950
Incorrect
Answer : d
His investments are 2000, 3000 and 5000 respectively. His dividends are: 200, 750 and 1000, which means total dividend = 1950