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
Find out the wrong number in the following given number series:
9256 6844 4888 3350 2152 1276
Correct
Answer: D
Explanation
The series is (21)³ – 5 = 9256,
(19)³ – 15 = 6844,
(17)³ – 25 = 4888,
(15)³ – 35 = 3340,
(13)³ – 45 = 2152,
(11)³ – 55 = 1276
Hence it should be 3340 in place of 3350.
Incorrect
Answer: D
Explanation
The series is (21)³ – 5 = 9256,
(19)³ – 15 = 6844,
(17)³ – 25 = 4888,
(15)³ – 35 = 3340,
(13)³ – 45 = 2152,
(11)³ – 55 = 1276
Hence it should be 3340 in place of 3350.
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Question 2 of 5
2. Question
What value should come in place of question mark (?) in the following number series?
19, 27, 0 , 64, ? , 155
Correct
Answer: A
Explanation
Incorrect
Answer: A
Explanation
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Question 3 of 5
3. Question
Find out the wrong number in the following given number series:
17113, 3853, 1105, 229, 75
Correct
Answer: C
Explanation
47+ 36= 16384 + 729 = 17113
46 – 35= 4096 – 243 = 3853
45+ 34= 1024 + 81 = 1105
44– 33= 256 – 27 = 229
43+ 32= 64 + 9 = 73
Incorrect
Answer: C
Explanation
47+ 36= 16384 + 729 = 17113
46 – 35= 4096 – 243 = 3853
45+ 34= 1024 + 81 = 1105
44– 33= 256 – 27 = 229
43+ 32= 64 + 9 = 73
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Question 4 of 5
4. Question
What value should come in place of question mark (?) in the following number series?
122, 62, 32, ?, 9.5, 5.75
Correct
Answer: C
Explanation
Incorrect
Answer: C
Explanation
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Question 5 of 5
5. Question
Find out the wrong number in the following given number series:
30, 42, 48, 54, 65, 81, 126
Correct
Answer: B
Explanation
Solution
Hence, 65 is wrong number
Incorrect
Answer: B
Explanation
Solution
Hence, 65 is wrong number
