# Floor Function Sum?

Algebra Level 3

Let $$\left\lfloor x \right\rfloor$$ denote the greatest integer less than or equal to $$x$$. Find the value of $$\left\lfloor \frac { 2 }{ 5 } \right\rfloor +\left\lfloor \frac { 4 }{ 5 } \right\rfloor +\left\lfloor \frac { 6 }{ 5 } \right\rfloor +...+\left\lfloor \frac { 48 }{ 5 } \right\rfloor$$.

Do not use a calculator and try to do it under 5 minutes.

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