Answer: The required length by which the elephant grows in 8 days is [tex]18\dfrac{2}{3}~\textup{inches}.[/tex]
Step-by-step explanation: Given that an elephant grows [tex]2\dfrac{1}{3}[/tex] inches a day.
We are to find the length by which it grow in 8 days.
We will be using the UNITARY method to solve the given problem.
In 1 day, the length by which the elephant grow is
[tex]2\dfrac{1}{3}=\dfrac{7}{3}~\textup{inches}.[/tex]
Therefore, the length by which the elephant grow in 8 ways is given by
[tex]\dfrac{7}{3}\times8=\dfrac{56}{3}=18\dfrac{2}{3}~\textup{inches}.[/tex]
Thus, the required length by which the elephant grows in 8 days is [tex]18\dfrac{2}{3}~\textup{inches}.[/tex]
