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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
The population of a village is 1,00,000, Increase rate per annum is 10%. Find the population at the starting of the fourth year.
Correct
Sol. a)
100000 → 110000 (after 1 year) → 121000 (after 2 years) → 133100 (after 3 years and at the start of the fourth year).
Incorrect
Sol. a)
100000 → 110000 (after 1 year) → 121000 (after 2 years) → 133100 (after 3 years and at the start of the fourth year).
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Question 2 of 5
2. Question
In the recent, climate conference in New York, out of 700 men, 500 women, 800 children present inside the building premises, 20% of the men, 40% of the women and 10% of the children were Indians. Find the percentage of people who were not Indian.
Correct
Sol. c)
Total people present = 700 + 500 + 800 = 2000.
Indians = 0.2 × 700 + 0.4 × 500 + 0.1 × 800 = 420 = 21% of the population. Thus, 79% of the people were not Indians.
Incorrect
Sol. c)
Total people present = 700 + 500 + 800 = 2000.
Indians = 0.2 × 700 + 0.4 × 500 + 0.1 × 800 = 420 = 21% of the population. Thus, 79% of the people were not Indians.
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Question 3 of 5
3. Question
A cow and a calf cost Rs. 2000 and Rs. 1400 respectively. If the price of the cow and that of the calf is increased by 20% and 30% respectively then the price of 1 dozen cows and 2 dozens calves is:
Correct
Sol. a)
Price of a cow after increase= 2400. Price of a calf after 30% increase 1820. Cost of 12 cows and 24 calves = 12 × 2400 + 24 × 1820 = 72480.
Incorrect
Sol. a)
Price of a cow after increase= 2400. Price of a calf after 30% increase 1820. Cost of 12 cows and 24 calves = 12 × 2400 + 24 × 1820 = 72480.
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Question 4 of 5
4. Question
Ram sells his goods 20% cheaper than Bobby and 20% dearer than Chandilya. How much percentage is Chandilya’s goods cheaper/dearer than Bobby’s?
Correct
Sol. a)
If we take Ram as 100, we will get Bobby as 125 and Chandilya as 83.33. This means Chandilya’s goods are priced at 2/3rd Bobby’s and hence he sells his goods 33.33% cheaper than Bobby.
Incorrect
Sol. a)
If we take Ram as 100, we will get Bobby as 125 and Chandilya as 83.33. This means Chandilya’s goods are priced at 2/3rd Bobby’s and hence he sells his goods 33.33% cheaper than Bobby.
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Question 5 of 5
5. Question
During winters, an athlete can run ‘x’ metres on one bottle of Glucose. But in the summer, he can only run 0.5 x metres on one bottle of Glucose. How many bottles of Glucose are required to run 400 metres during summer?
Correct
Sol. a)
1 Bottle → 0.5x metres
? Bottles → 400 metres
Using unitary method, we get no. of bottles = 400/0.5x = 800/x Bottles.
Incorrect
Sol. a)
1 Bottle → 0.5x metres
? Bottles → 400 metres
Using unitary method, we get no. of bottles = 400/0.5x = 800/x Bottles.
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