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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
What is the probability of getting the sum of 6 or more when two dices are rolled together?
Correct
Answer : C
Explanation:
When two dices are rolled together the sum of the readings from 2 to 36. There are 36 possibilities like {(1,1),(1,2),(1,3),(1,4)…….(6,6)}
When sum is 6; {(1,5),(5,1),(2,4),)(4,2),(3,3) } = 5
7; {(1,6),(6,1),(2,5),(5,2),(3,4),(4,3)} = 6
8; {(2,6),(6,2),(3,5),(5,3),(4,4) = 5
9; {(3,6)(6,3),(4,5),(5,4)} = 4
10; {(4,6),(6,4),(5,5)} = 3
11; {(5,6),(6,5)} = 2
12; {(6,6)} = 1 —————- 26 ,
Probability = 26/36 = 13/18
Incorrect
Answer : C
Explanation:
When two dices are rolled together the sum of the readings from 2 to 36. There are 36 possibilities like {(1,1),(1,2),(1,3),(1,4)…….(6,6)}
When sum is 6; {(1,5),(5,1),(2,4),)(4,2),(3,3) } = 5
7; {(1,6),(6,1),(2,5),(5,2),(3,4),(4,3)} = 6
8; {(2,6),(6,2),(3,5),(5,3),(4,4) = 5
9; {(3,6)(6,3),(4,5),(5,4)} = 4
10; {(4,6),(6,4),(5,5)} = 3
11; {(5,6),(6,5)} = 2
12; {(6,6)} = 1 —————- 26 ,
Probability = 26/36 = 13/18
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Question 2 of 5
2. Question
A milkman buys some milk. If he sells it at rupees 10 a litre, he losses 400 rupees but when he sells it at 12 a litre, he gains 800 rupees. How much milk did he purchase?
Correct
Answer : C
Explanation:
10x=s-400 => 12x=s+800 => 2x=1200 => X=600
Incorrect
Answer : C
Explanation:
10x=s-400 => 12x=s+800 => 2x=1200 => X=600
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Question 3 of 5
3. Question
The length and breadth of a rectangle are increased by 20% and 30%.The area of the resulting rectangle exceeds the area of the original rectangle by?
Correct
Answer : C
Explanation:
(120/100) ×(130/100) ×100=156.
156-100=56.
Incorrect
Answer : C
Explanation:
(120/100) ×(130/100) ×100=156.
156-100=56.
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Question 4 of 5
4. Question
Ravi sold a smartphone for Rs. 30,000. Had he offered a discount of 10% on the selling price (SP), he would have earned a profit of 35%. What is the cost price?
Correct
Answer : A
Explanation:
30,000*90/100 = 27000
27,000 = CP*135*/100
CP = 20000
Incorrect
Answer : A
Explanation:
30,000*90/100 = 27000
27,000 = CP*135*/100
CP = 20000
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Question 5 of 5
5. Question
Find the wrong number series given below 18, 55, 167, 504, 1516, 4660
Correct
Answer : A
Explanation:
18 * 3 + 1 = 55
55 * 3 + 2 = 167
167 * 3 + 3 = 504
504 * 3 + 4 = 1516
1516 * 3 + 5 = 4553
Incorrect
Answer : A
Explanation:
18 * 3 + 1 = 55
55 * 3 + 2 = 167
167 * 3 + 3 = 504
504 * 3 + 4 = 1516
1516 * 3 + 5 = 4553
