Abhijit Guha Solutions for Chapter: Number Series, Exercise 2: Practice Problems Level 2

In each of the following questions, a number series is established if the positions of two out of the five marked numbers are interchanged. The position of the first unmarked number remains the same and it is the beginning of the series. The earlier of the two marked numbers whose positions are interchanged is the answer. For example, if an interchange of the number marked '$1$' and the number marked '$4$' is required to establish the series, your answer is $1$. If it is not necessary to interchange the positions of the numbers to establish the series give '$5$' as your answer.

$8 4 12 6 4 30$

In each of the following questions, a number series is established if the positions of two out of the five marked numbers are interchanged. The position of the first unmarked number remains the same and it is the beginning of the series. The earlier of the two marked numbers whose positions are interchanged is the answer. For example, if an interchange of the number marked '$1$' and the number marked '$4$' is required to establish the series, your answer is $1$. If it is not necessary to interchange the positions of the numbers to establish the series give '$5$' as your answer.

$829 436 661 300 557 508$

In each of the following questions, a number series is established if the positions of two out of the five marked numbers are interchanged. The position of the first unmarked number remains the same and it is the beginning of the series. The earlier of the two marked numbers whose positions are interchanged is the answer. For example, if an interchange of the number marked '$1$' and the number marked '$4$' is required to establish the series, your answer is $1$. If it is not necessary to interchange the positions of the numbers to establish the series give '$5$' as your answer.

$6 56 1 19 11 529$

In each of the following questions, a number series is established if the positions of two out of the five marked numbers are interchanged. The position of the first unmarked number remains the same and it is the beginning of the series. The earlier of the two marked numbers whose positions are interchanged is the answer. For example, if an interchange of the number marked '$1$' and the number marked '$4$' is required to establish the series, your answer is $1$. If it is not necessary to interchange the positions of the numbers to establish the series give '$5$' as your answer.

$21 29 23 21 41 61$

In each of the following questions, a number series is established if the positions of two out of the five marked numbers are interchanged. The position of the first unmarked number remains the same and it is the beginning of the series. The earlier of the two marked numbers whose positions are interchanged is the answer. For example, if an interchange of the number marked '$1$' and the number marked '$4$' is required to establish the series, your answer is $1$. If it is not necessary to interchange the positions of the numbers to establish the series give '$5$' as your answer.

$4 0 -7 -45 -20 -94$

In each of the following questions, a number series is established if the positions of two out of the five marked numbers are interchanged. The position of the first unmarked number remains the same and it is the beginning of the series. The earlier of the two marked numbers whose positions are interchanged is the answer. For example, if an interchange of the number marked '$1$' and the number marked '$4$' is required to establish the series, your answer is $1$. If it is not necessary to interchange the positions of the numbers to establish the series give '$5$' as your answer.

$0 6 184 56 109 23$

In each of the following questions, a number series is established if the positions of two out of the five marked numbers are interchanged. The position of the first unmarked number remains the same and it is the beginning of the series. The earlier of the two marked numbers whose positions are interchanged is the answer. For example, if an interchange of the number marked '$1$' and the number marked '$4$' is required to establish the series, your answer is $1$. If it is not necessary to interchange the positions of the numbers to establish the series give '$5$' as your answer.

$375 363 356 344 336 324$

In each of the following questions, a number series is given. After the series a number is given following by $\left(\mathrm{a}\right), \left(\mathrm{b}\right), \left(\mathrm{c}\right), \left(\mathrm{d}\right)$ and $\left(\mathrm{e}\right)$. You have to complete the series with the number given, following the sequence of the original series and answer the question that follow the series.

$\begin{array}{lllllll}2& 14& 18& 46& 82& 176& 338\\ 4& (\mathrm{a}) & (\mathrm{b}) & (\mathrm{c}) & (\mathrm{d}) & (\mathrm{e}) & (\mathrm{f}). \end{array}$