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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
Harsh wanted to subtract 5 from a number. Unfortunately, he added 5 instead of subtracting. Find the percentage change in the result
Correct
Ans-d
The percentage difference would be given by thinking of the percentage change between two numbers (x-5) to (x + 5) [‘ What he wanted to get’ to what he got by mistake’].
The value of the percentage difference in this depends on the value of x. Hence, this cannot be case answered. Option (d) is correct.
Incorrect
Ans-d
The percentage difference would be given by thinking of the percentage change between two numbers (x-5) to (x + 5) [‘ What he wanted to get’ to what he got by mistake’].
The value of the percentage difference in this depends on the value of x. Hence, this cannot be case answered. Option (d) is correct.
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Question 2 of 5
2. Question
If 65% of x13% of y, then find the value of x if y = 2000.
Correct
Ans-c
65% of x = 13% of 2000 → 0.65 x= 260→x = 400
Incorrect
Ans-c
65% of x = 13% of 2000 → 0.65 x= 260→x = 400
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Question 3 of 5
3. Question
In a mixture of 80 litres of milk and water, 25% of the mixture is milk. How much water should be added to the mixture so that milk becomes 20% of the mixture?
Correct
Ans-a
From the first statement we get that out of 80 litres of the mixture, 20 litres must be milk. Since, we are adding water to this and keeping the milk constant, it is quite evident that 20 litres of milk should correspond to 20% of the total mixture. Thus, the amount in the total mixture must be 100, which means we need to add 20 litres of water to make 100 litres of the mixture.
Incorrect
Ans-a
From the first statement we get that out of 80 litres of the mixture, 20 litres must be milk. Since, we are adding water to this and keeping the milk constant, it is quite evident that 20 litres of milk should correspond to 20% of the total mixture. Thus, the amount in the total mixture must be 100, which means we need to add 20 litres of water to make 100 litres of the mixture.
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Question 4 of 5
4. Question
50% of a% of b is 75% of 6% of c. Which of the following is c?
Correct
Ans-b
(50/100) x (a/100) x (b) = (75/100) x (b/100) x (c) → 50a = 75c → c = 0.667a
Incorrect
Ans-b
(50/100) x (a/100) x (b) = (75/100) x (b/100) x (c) → 50a = 75c → c = 0.667a
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Question 5 of 5
5. 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
Ans-d
Hence, the required answer is 32%
Incorrect
Ans-d
Hence, the required answer is 32%
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