10. If median = 15 and mean = 16, find mode of the distribution

Using the relationship,

3 Median - 2 Mean = Mode

$\Rightarrow$ 3(15) - 2(16) =  Mode

$\Rightarrow$ 45 - 32 =  Mode

$\Rightarrow$ 13 =  Mode

Thus, the mode is 13.
 

So mode=13