UPSC Insta–DART (Daily Aptitude and Reasoning Test) 31 Oct 2024
Kartavya Desk Staff
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 a) 28 b) 65 c) 126 d) 216 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.
#### 1. Question
Directions (1 -2): Find the wrong term in the following given series.
2, 9, 28, 65, 126, 216, 344
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.
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.
• Question 2 of 5 2. Question 10, 26, 74, 218, 654, 1946, 5834 a) 26 b) 74 c) 218 d) 654 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.
#### 2. Question
10, 26, 74, 218, 654, 1946, 5834
Explanation
The pattern is: to arrive at next term, the previous is multiplied by 3 and subtracted by 4:
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.
Explanation
The pattern is: to arrive at next term, the previous is multiplied by 3 and subtracted by 4:
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.
• Question 3 of 5 3. Question 4, 2, 8, 16, 128, ? a. 918 b. 1018 c. 2048 d. 2078 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
#### 3. Question
4, 2, 8, 16, 128, ?
Explanation
The number in the series is product of two numbers preceding it
Explanation
The number in the series is product of two numbers preceding it
• Question 4 of 5 4. Question 1, 1, 2, 8, 64, ?, 65536 a. 1024 b. 2556 c. 4096 d. 1088 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.
#### 4. Question
1, 1, 2, 8, 64, ?, 65536
Explanation
The sequence in the series is ×1, ×2, ×4, ×8, ×16, ×64.
Explanation
The sequence in the series is ×1, ×2, ×4, ×8, ×16, ×64.
• Question 5 of 5 5. Question 4, -8, 14, -22, 32, ? a. -44 b. 42 c. -42 d. 44 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.
#### 5. Question
4, -8, 14, -22, 32, ?
Explanation
Alternative numbers are marked positive and negative, but the difference between their magnitude increases by 2 at each step.
Explanation
Alternative numbers are marked positive and negative, but the difference between their magnitude increases by 2 at each step.
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