Geometric mean

If the arithmetic mean of two numbers is $5$ and the geometric mean is $4$, then the numbers are:

The heights of five runners are $160 \mathrm{cm}$, $137 \mathrm{cm}$, $149 \mathrm{cm}$, $153 \mathrm{cm}$ and $161 \mathrm{cm}$ respectively. Find the mean height per runner.

Find the common ratio of the geometric sequence. $3, 6, 12, 24, 48, \dots \dots$

Marks obtained by three students are $75,$ $98$ and $96$. Find the geometric mean of the marks obtained.

A number is $4$ times the other number. The geometric Mean of two numbers is $8$. Find the largest number.

Find the geometric mean of $507, 726$ and $578$.

Find the geometric mean of $0.008$ and $0.2$.

Which of the following is compound?