Question

If elephant grass grows 2 1/3 inches a day, how many inches will it grow in 8 days?

Answer 1

2 1/3 * 8 = 16 8/3 or 18 2/3 inches in 8 days.

Answer 2

Answer:  The required length by which the elephant grows in 8 days is $18\dfrac{2}{3}~\textup{inches}.$

Step-by-step explanation:  Given that an elephant grows $2\dfrac{1}{3}$ 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

$2\dfrac{1}{3}=\dfrac{7}{3}~\textup{inches}.$

Therefore, the length by which the elephant grow in 8 ways is given by

$\dfrac{7}{3}\times8=\dfrac{56}{3}=18\dfrac{2}{3}~\textup{inches}.$

Thus, the required length by which the elephant grows in 8 days is $18\dfrac{2}{3}~\textup{inches}.$