UPSC Insta–DART (Daily Aptitude and Reasoning Test) 28 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 Find the missing term in the given series. 2, 9/2, 28/3, 65/4, ___ a) 126/5 b) 95/5 c) 113/5 d) 15 Correct Answer: A Explanation: Here, each term of the series is divided by a number. First term is divided by 1, second term is divided by “2”, third term is divided by “3”, fourth term is divided by “4”. So, the fifth term will be divided by 5. For numerator: 1st term = 13 + 1 = 2 2nd term = 23 + 1 = 9 3rd term = 33 + 1 = 28 4th term = 43 + 1 = 65 5th term = 53 + 1 = 126 So, ? = 126/5 Hence, option (a) is the correct answer. Incorrect Answer: A Explanation: Here, each term of the series is divided by a number. First term is divided by 1, second term is divided by “2”, third term is divided by “3”, fourth term is divided by “4”. So, the fifth term will be divided by 5. For numerator: 1st term = 13 + 1 = 2 2nd term = 23 + 1 = 9 3rd term = 33 + 1 = 28 4th term = 43 + 1 = 65 5th term = 53 + 1 = 126 So, ? = 126/5 Hence, option (a) is the correct answer.
#### 1. Question
Find the missing term in the given series.
2, 9/2, 28/3, 65/4, ___
Explanation:
Here, each term of the series is divided by a number. First term is divided by 1, second term is divided by “2”, third term is divided by “3”, fourth term is divided by “4”. So, the fifth term will be divided by 5.
For numerator:
1st term = 13 + 1 = 2
2nd term = 23 + 1 = 9
3rd term = 33 + 1 = 28
4th term = 43 + 1 = 65
5th term = 53 + 1 = 126
So, ? = 126/5 Hence, option (a) is the correct answer.
Explanation:
Here, each term of the series is divided by a number. First term is divided by 1, second term is divided by “2”, third term is divided by “3”, fourth term is divided by “4”. So, the fifth term will be divided by 5.
For numerator:
1st term = 13 + 1 = 2
2nd term = 23 + 1 = 9
3rd term = 33 + 1 = 28
4th term = 43 + 1 = 65
5th term = 53 + 1 = 126
So, ? = 126/5 Hence, option (a) is the correct answer.
• Question 2 of 5 2. Question What should come in place of the question mark (?) in the following series ? 2, 35, 156, 477, ? , 959 a) 858 b) 958 c) 564 d) 727 Correct Answer: B Explanation: (2+5)×5=35 (35+4)×4=156 (156+3)×3=477 (477+2)×2=958 (958+1)×1=959 Hence Option (b) is correct answer. Incorrect Answer: B Explanation: (2+5)×5=35 (35+4)×4=156 (156+3)×3=477 (477+2)×2=958 (958+1)×1=959 Hence Option (b) is correct answer.
#### 2. Question
What should come in place of the question mark (?) in the following series ?
2, 35, 156, 477, ? , 959
Explanation:
(2+5)×5=35
(35+4)×4=156
(156+3)×3=477
(477+2)×2=958
(958+1)×1=959 Hence Option (b) is correct answer.
Explanation:
(2+5)×5=35
(35+4)×4=156
(156+3)×3=477
(477+2)×2=958
(958+1)×1=959 Hence Option (b) is correct answer.
• Question 3 of 5 3. Question Find a wrong number in the following series. 17, 29, 53, 101, 189, 389 a) 17 b) 101 c) 53 d) 189 Correct Answer: D Explanation: 17 17 + 12 = 29 29 + 24 = 53 53 + 48 = 101 101 + 96 = 197 ≠189 197 + 192 = 389 ∴ Wrong number is 189. Hence, option (d) is the correct answer. Incorrect Answer: D Explanation: 17 17 + 12 = 29 29 + 24 = 53 53 + 48 = 101 101 + 96 = 197 ≠189 197 + 192 = 389 ∴ Wrong number is 189. Hence, option (d) is the correct answer.
#### 3. Question
Find a wrong number in the following series.
17, 29, 53, 101, 189, 389
Explanation:
17 + 12 = 29
29 + 24 = 53
53 + 48 = 101
101 + 96 = 197 ≠189
197 + 192 = 389
∴ Wrong number is 189. Hence, option (d) is the correct answer.
Explanation:
17 + 12 = 29
29 + 24 = 53
53 + 48 = 101
101 + 96 = 197 ≠189
197 + 192 = 389
∴ Wrong number is 189. Hence, option (d) is the correct answer.
• Question 4 of 5 4. Question What will come in place of ‘?’ in the following sequence? 13, 35, 57, 79, 911, ? a) 1113 b) 1110 c) 1211 d) 1512 Correct Answer: A Explanation: The terms of the given series are numbers formed by joining together consecutive odd numbers in order, i.e. 1 and 3, 3 and 5, 5 and 7, 7 and 9, 9 and 11, and so on. So, missing term = number formed by joining 11 and 13 = 1113 Hence, option (a) is the correct answer. Incorrect Answer: A Explanation: The terms of the given series are numbers formed by joining together consecutive odd numbers in order, i.e. 1 and 3, 3 and 5, 5 and 7, 7 and 9, 9 and 11, and so on. So, missing term = number formed by joining 11 and 13 = 1113 Hence, option (a) is the correct answer.
#### 4. Question
What will come in place of ‘?’ in the following sequence?
13, 35, 57, 79, 911, ?
Explanation:
The terms of the given series are numbers formed by joining together consecutive odd numbers in order,
i.e. 1 and 3, 3 and 5, 5 and 7, 7 and 9, 9 and 11, and so on.
So, missing term = number formed by joining 11 and 13 = 1113 Hence, option (a) is the correct answer.
Explanation:
The terms of the given series are numbers formed by joining together consecutive odd numbers in order,
i.e. 1 and 3, 3 and 5, 5 and 7, 7 and 9, 9 and 11, and so on.
So, missing term = number formed by joining 11 and 13 = 1113 Hence, option (a) is the correct answer.
• Question 5 of 5 5. Question Find the wrong number in the given series that does not follow the pattern? 210, 197, 171, 135, 80, 15 a) 35 b) 125 c) 135 d) 25 Correct Answer: C Explanation: So wrong number is 135 Hence, option (c) is the correct answer. Incorrect Answer: C Explanation: So wrong number is 135 Hence, option (c) is the correct answer.
#### 5. Question
Find the wrong number in the given series that does not follow the pattern?
210, 197, 171, 135, 80, 15
Explanation:
So wrong number is 135 Hence, option (c) is the correct answer.
Explanation:
So wrong number is 135 Hence, option (c) is the correct answer.
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