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
A mixture of milk and water in the ratio 5:3. If 80 liters of mixture is taken out and 8 liters of pure water is added to the mixture, then percentage of water in the mixture becomes 40%. Find the initial quantity of mixture.
Correct
Answer: (a) 272
Explanation:
Let,
Quantity of milk and water in the initial mixture be 5x liters and 3x liters respectively.
ATQ,
((5x-5/8 *80)/3x-80*3/8 +8)=3/2
On solving we get x=34
Required quantity=5x+3x=272 liters.
Incorrect
Answer: (a) 272
Explanation:
Let,
Quantity of milk and water in the initial mixture be 5x liters and 3x liters respectively.
ATQ,
((5x-5/8 *80)/3x-80*3/8 +8)=3/2
On solving we get x=34
Required quantity=5x+3x=272 liters.
-
Question 2 of 5
2. Question
Two vessel A and B of equal capacity contains mixture of milk and water in the ratio 8:y and 7:6 respectively. If total quantity of each vessel is 520L and quantity of milk in A=14(2/7)% more than quantity of milk of milk in B then find y.
Correct
Answer: (c) 5
Explanation:
Milk in B=520/13 *7=280L
Milk in A = 8/7*280=320L
So,
320/560-320=8/y
On solving e get y=5
Incorrect
Answer: (c) 5
Explanation:
Milk in B=520/13 *7=280L
Milk in A = 8/7*280=320L
So,
320/560-320=8/y
On solving e get y=5
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Question 3 of 5
3. Question
Radha purchased 4kg rice and 5kg wheat for Rs.360 and Suresh purchased 2kg rice and 15g wheat for Rs.580. then , find per kg price of wheat is what percent of per kg price of rice?
Correct
Answer: (a) 64%
Explanation:
Let the price of rice and wheat be X and Y respectively.
ATQ,
4X+5Y=360–à(1)
And
2X+15Y=580-à(2)
On solving 1 and 2, e get
Y=32
X=50
Required percentage=32/50 *100=64%
Incorrect
Answer: (a) 64%
Explanation:
Let the price of rice and wheat be X and Y respectively.
ATQ,
4X+5Y=360–à(1)
And
2X+15Y=580-à(2)
On solving 1 and 2, e get
Y=32
X=50
Required percentage=32/50 *100=64%
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Question 4 of 5
4. Question
In what ratio must sugar at Rs. 4per kg be mixed with sugar at Rs. 7 per kg so that the mixture be worth Rs. 5 per kg?
Correct
Answer: (a) 2:1
Explanation:
By the rule of allegation
Required ratio is 2:1
Incorrect
Answer: (a) 2:1
Explanation:
By the rule of allegation
Required ratio is 2:1
-
Question 5 of 5
5. Question
A vessel of 320 liter is filled with milk and water. 70% of milk and 30% of water is taken out of the vessel. After this task , it is found that vessel is now filled by 55% quantity of milk and water . what is the original quantity of milk and water in the vessel respectively.
Correct
Answer: (c) 200, 120
Explanation:
By the rule of allegation
Ratio =5:3
Quantity of milk=5/8*320=200 liters
Quantity of water=3/8*320=120 liters
Incorrect
Answer: (c) 200, 120
Explanation:
By the rule of allegation
Ratio =5:3
Quantity of milk=5/8*320=200 liters
Quantity of water=3/8*320=120 liters
