Question
Write the decimal number represented by the points on the given number line: $A, B, C, D.$

Answer

$a.\ 0.8,$ since $A$ is at the eighth place between $0$ and $1.$
$b.\ 1.3,$ since $B$ is at the third place between $1$ and $2.$
$c.\ 1.9,$ since $C$ is at the ninth place between $1$ and $2.$
$d.\ 2.6,$ since $D$ is at the sixth place between $2$ and $3.$
Disclaimer: The image given in the book is not consistent; as the number of periods between $0$ and $1$ is ten but the number of periods between $1$ and $2$ are seven. So, ignoring the position of the given numbers $1, 2$ and $3.$ it has been assumed that there are ten periods between every two consecutive numbers starting from the first point taken as zero.

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