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
Directions (1 -2): Find the wrong term in the following given series.
2, 9, 28, 65, 126, 216, 344
Correct
Answer: D
Explanation
The pattern in the series is that the series is triangular as shown below:
In the triangular series, the difference between consecutive terms is written below the numbers and then, difference between consecutive differences is written below & this process carries on until all the difference become equal. In the figure above there was an error & we have corrected it.
Incorrect
Answer: D
Explanation
The pattern in the series is that the series is triangular as shown below:
In the triangular series, the difference between consecutive terms is written below the numbers and then, difference between consecutive differences is written below & this process carries on until all the difference become equal. In the figure above there was an error & we have corrected it.
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Question 2 of 5
2. Question
10, 26, 74, 218, 654, 1946, 5834
Correct
Answer: D
Explanation
The pattern is: to arrive at next term, the previous is multiplied by 3 and subtracted by 4:
10
10 × 3 – 4 = 26
26 × 3 – 4 = 74
74 × 3 – 4 = 218
218 × 3 – 4 = 650 ≠ 654
650 × 3 – 4 = 1946
1946 × 3 – 4 = 5834
Here, ‘654’ was wrong.
Incorrect
Answer: D
Explanation
The pattern is: to arrive at next term, the previous is multiplied by 3 and subtracted by 4:
10
10 × 3 – 4 = 26
26 × 3 – 4 = 74
74 × 3 – 4 = 218
218 × 3 – 4 = 650 ≠ 654
650 × 3 – 4 = 1946
1946 × 3 – 4 = 5834
Here, ‘654’ was wrong.
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Question 3 of 5
3. Question
4, 2, 8, 16, 128, ?
Correct
Answer: C
Explanation
The number in the series is product of two numbers preceding it
Incorrect
Answer: C
Explanation
The number in the series is product of two numbers preceding it
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Question 4 of 5
4. Question
1, 1, 2, 8, 64, ?, 65536
Correct
Answer: A
Explanation
The sequence in the series is ×1, ×2, ×4, ×8, ×16, ×64.
Incorrect
Answer: A
Explanation
The sequence in the series is ×1, ×2, ×4, ×8, ×16, ×64.
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Question 5 of 5
5. Question
4, -8, 14, -22, 32, ?
Correct
Answer: A
Explanation
Alternative numbers are marked positive and negative, but the difference between their magnitude increases by 2 at each step.
Incorrect
Answer: A
Explanation
Alternative numbers are marked positive and negative, but the difference between their magnitude increases by 2 at each step.
