We will study about the “Arithmetical Number Series” in the reasoning section of the IBPS bank exam and others. In this portion, question will be numerical, alphabetical and alphanumeric. These questions have some tricks and tips for solving them. Applicant must check that how to solve questions and with an explanation. Candidate must have downloaded these notes in PDF format.
What is arithmetical number series
In this series, there are missing one, wrong one and fill in the banks questions in numerical form and alphanumerical form.
Number series is a form of numbers in a certain sequence, where some numbers are mistakenly given into the series of numbers and some number is missing in that series, we need to observe first and then find the accurate number to that series of numbers.
Types of number series
There are some format of series:-
- Perfect squares.
- Perfect cubes.
- AP(Arithmetic progression).
- GP(geometric Progression).
- where nth terms of sequences(an),a1 is first term, d is the common difference.
This type of series are based on ascending or descending order of numbers and each successive number is obtain by multiplying or dividing the previous number with a fixed number.
where r is common ratio.
Questions & Answers
Question 1: Look at this series: 2, 1, (1/2), (1/4), ... What number should come next?
Question 2: Look at this series: 22, 21, 23, 22, 24, 23, ... What number should come next?
Question 3: Look at this series: 7, 10, 8, 11, 9, 12... What number should come next?
Question 4: Find out the wrong number in the series: 3, 8, 15, 24,34,48,63.
Question 5: Complete the series: 2, 5, 9, 19, 37…
Question 6: Find out the wrong one in the series 7, 8,18,57,228,1165,6996.
Question 7: Look at this series: F2, __, D8, C16, B32, ... What number should fill the blank?
Question 8: Look at this series: VI, 10, V, 11, __, 12, III, ... What number should fill the blank?
Question 9: Look at this series: J14, L16, __, P20, R22, ... What number should fill the
Question 10: 589245773, 89245773, 8924577, 924577, ?
Here this article is related to :-
- number series notes
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- number series questions and answers for bank exams