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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 mixture of 125 gallons of wine and water contains 20% water. How much water must be added to the mixture in order to increase the percentage of water to 25% of the new mixture
Correct
In 125 gallons we have 25 gallons water and 100 gallons wine. To increase the percentage of water to 25%, we need to reduce the percentage of wine to =75%. This means that 100 gallons of wine 75% of the new mixture. Thus the total mixture =133.33 gallons. Thus, we need to mx 133.33 – 125 = 8.33 gallons of water in order to make the water equivalent to 25% of the mixture.
Incorrect
In 125 gallons we have 25 gallons water and 100 gallons wine. To increase the percentage of water to 25%, we need to reduce the percentage of wine to =75%. This means that 100 gallons of wine 75% of the new mixture. Thus the total mixture =133.33 gallons. Thus, we need to mx 133.33 – 125 = 8.33 gallons of water in order to make the water equivalent to 25% of the mixture.
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Question 2 of 5
2. Question
A container has a capacity of 20 gallons and is full of spirit. 4 gallons of spirit is drawn out and the container is again filed with water. This process is repeated 5 times. Find out how much spirit is left in the resulting mixture finally?
Correct
The amount of spirit left= 20 x 4/5 x 4/5 x 4/5 x 4/5 x 4/5 = 4096/625 = 6 (346/625).
Incorrect
The amount of spirit left= 20 x 4/5 x 4/5 x 4/5 x 4/5 x 4/5 = 4096/625 = 6 (346/625).
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Question 3 of 5
3. Question
The average salary per head of all employees of a company is Rs. 600. The average salary of 120 officers is Rs. 4000. If the average salary per head of the rest of the employees is560, find the total number of workers in the company.
Correct
From the figure it is clear that the ratio of the number of officers to the number of other employees would be 40:3400. Since there are 120 officers, there would be 3400 x 3 = 10200 workers in the company. Thus the total number of employees would be 10200 +120 = 10320.
Incorrect
From the figure it is clear that the ratio of the number of officers to the number of other employees would be 40:3400. Since there are 120 officers, there would be 3400 x 3 = 10200 workers in the company. Thus the total number of employees would be 10200 +120 = 10320.
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Question 4 of 5
4. Question
A landowner increased the length and the breadth of a rectangular plot by 10% and 20% respectively. Find the percentage change in the cost of the plot assuming land prices are uniform throughout his plot.
Correct
Incorrect
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Question 5 of 5
5. Question
The price of rice falls by 20%. How much rice can be bought now with the money that was sufficient to buy 20 kg of rice previously?
Correct
If the price of rice has fallen by 20% the quantity would be increased by 25% (if we keep the expenditure constant.)
This means that 20 kgs would increase by 25% to 25kgs.
Incorrect
If the price of rice has fallen by 20% the quantity would be increased by 25% (if we keep the expenditure constant.)
This means that 20 kgs would increase by 25% to 25kgs.
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