Amount five people with monthly income (in Rs.) 15000, 26000, 16000, 19000, 50000, how many will have income less than the mean income of five people?

Answer: Option C

Mean income
$$=\text{Rs}\text{.}\left(\frac{15000+26000+16000+19000+50000}{5}\right)$$
$$\begin{array}{rl}& =\text{Rs}\text{.}\left(\frac{126000}{5}\right)\\ & =\text{Rs}\text{. 25200}\end{array}$$
Clearly, three people have monthly income below the mean income.