Number And Alphabet Sequence - Number Set
Number And Alphabet Sequence - Number Set
Number/alphabet sequence is a combination of numeric and/or alphabetic characters. Before starting with the questions, let us understand the meaning of 'following', 'followed by', 'preceding' and preceded by'.
In this type of questions, generally a set, group or series of numerals is given and the candidate is asked to trace out numerals following certain given conditions of lying at specific mentioned positions after shuffling according to a certain given pattern.
Example 1 : How many such 5s are there in the following number sequence each of which is immediately preceded by 3 or 4 but not immediately followed by 8 or 9 ?
3 5 9 5 4 5 5 3 5 8 4 5 6 7 3 5 7 5 5 4 5 2 3 5 1 0
(a) None (b) Three (c) Four (d) Five (e) None of these
Solution : As you know, a number which comes after a given number is said to follow it while the one which comes before the given number precedes it. Thus, the numbers satisfying the given conditions may be marked as follows :
3 5 9 5 4 5 5 3 5 8 4 5 6 7 3 5 7 5 5 4 5 2 3 5 1 0
Clearly, there are five such 5s. Hence, the answer is (d).
Example 2: In the series, 6 4 1 2 2 8 7 4 2 1 5 3 8 6 2 1 7 1 4 1 3 2 8 6. How many pairs of successive numbers have a difference of 2 each ?
(a) Four (b) Five (c) Six (d) Seven
Solution : Clearly, the pairs of successive numbers having a difference of 2 can be shown as follows :
Thus, there are six such pairs. Hence, the answer is (c).
Study the number series given below and answer the question that follow: How many 8's are there in the following number series, each of which is exactly divisible by its immediately preceding and succeeding numbers? 8 2 4 5 1 7 2 8 4 8 4 2 2 8 2 6 9 8 4 5 4 8 3 2 8 4 3 1 8 3 | |||
| Right Option : D | |||
| View Explanation | |||
How many 6's are there in the following sequence, which are immediately preceded by 9 but not immediately followed by 0? 2 7 8 9 6 2 9 6 0 4 2 9 6 4 1 8 9 6 0 | |||
| Right Option : D | |||
| View Explanation | |||
In the following sequence is given that follow a logical rule. Here, students are required to nor immediately followed by 9. 9, 3, 6, 6, 3, 9, 5, 9, 3, 7, 8, 9, 1, 6, 3, 9, 6, 3, 9 | |||
| Right Option : B | |||
| View Explanation | |||
Students / Parents Reviews [20]
My experience was very good with Abhyas academy. I am studying here from 6th class and I am satisfied by its results in my life. I improved a lot here ahead of school syllabus.
Ayan Ghosh
8thUsually we see institutes offering objective based learning which usually causes a lag behind in subjective examinations which is the pattern followed by schools. I think it is really a work of planning to make us students grab the advantages of modes of examination, Objective Subjective and Onli...
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8thThe experience was nice. I studied here for three years and saw a tremendous change in myself. I started liking subjects like English and SST which earlier I ran from. Extra knowledge gave me confidence to overcome competitive exams. One of the best institutes for secondary education.
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10thMy experience with Abhyas is very good. I have learnt many things here like vedic maths and reasoning also. Teachers here first take our doubts and then there are assignments to verify our weak points.
Shivam Rana
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Eshan Arora
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Ayan Ghosh
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Om Umang
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Barkha Arora
10thMy experience with Abhyas Academy has been very good. When I was not in Abhyas whenever teacher ask questions I could not speak it confidently but when I came in Abhyas, my speaking skills developed and now I am the first one to give the answer of teachers question.
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Yatharthi Sharma
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