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Wrong Number Series Video Lecture | CSAT Preparation - UPSC

207 videos|156 docs|192 tests

FAQs on Wrong Number Series Video Lecture - CSAT Preparation - UPSC

1. What is a wrong number series?
Ans. A wrong number series is a sequence of numbers in which one or more numbers are incorrectly placed or follow a different pattern, resulting in a series that does not follow the typical numerical sequence.
2. How can wrong number series be identified?
Ans. Wrong number series can be identified by carefully analyzing the pattern of the given series and checking for any inconsistencies or deviations from the expected sequence. Common techniques include looking for arithmetic or geometric progressions, identifying missing or extra numbers, and observing any irregularities in the series.
3. What are some common mistakes made in wrong number series questions?
Ans. Some common mistakes made in wrong number series questions include overlooking patterns that involve squares or cubes of numbers, not considering alternate operations such as addition and subtraction, missing out on hidden multiplications or divisions, and failing to identify patterns involving prime numbers or composite numbers.
4. How can one approach solving wrong number series questions?
Ans. To solve wrong number series questions, it is important to carefully observe the given series and analyze the pattern. Start by identifying the basic mathematical operations involved, such as addition, subtraction, multiplication, or division. Look for any consistent pattern or rule that is being followed and apply it to the subsequent numbers in the series. It is also helpful to eliminate any distractors or numbers that do not fit the pattern.
5. Can wrong number series questions be solved using shortcuts or tricks?
Ans. Yes, wrong number series questions can often be solved using shortcuts or tricks. Some common shortcuts include identifying multiples or factors of numbers, using divisibility rules, recognizing perfect squares or cubes, and applying mental math techniques. However, it is important to note that understanding the underlying pattern and reasoning behind the series is crucial for accurate and efficient solving.
207 videos|156 docs|192 tests

Timeline

00:39 Different types of Number Series
01:12 Question 1
03:55 Question 2
05:54 Question 3
07:38 Question 4
09:23 Question 5
11:27 Question 6
13:27 Question 7
14:50 Question 8
16:23 Question 9
17:36 Question 10
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