Question

Find the missing number.

$11˸?\colon\colon 44˸12$

Answer 1

Given:

$11˸?\colon\colon 44˸12$

Here one mean is missing

$\mathrm{One}\mathrm{mean}=\frac{\mathrm{Product}\mathrm{of}\mathrm{extremes}}{\mathrm{other}\mathrm{mean}}$

$=\frac{11\times 12}{44}$

$=3$

Hence, the missing number is $3$.