# If a pipe can fill a tank in x hours, what fractional part of the tank will be filled in one hour?

Apr 23, 2018

$\frac{1}{x}$

#### Explanation:

If it takes $x$ hours to fill a tank, i.e. to fill $1$ tank, then in $1$ hour, it'll fill $\frac{1}{x}$ of the tank.

Apr 23, 2018

$\frac{1}{x}$ of it

#### Explanation:

when we have a number instead of $x$
case 1:
if a pipe can fill a tank in 5 hrs, what fractional part will be filled in a5hrs? answer: $\frac{1}{5}$th of it, the answer is always $\frac{1}{x}$ths of it