One sixth of a number when subtracted from the number itself gives 25. The number is _______.

Let the number be 'x'

one-sixth of a number = x/6

Given, one-sixth of a number when subtracted from the number itself gives 25

$x-\frac{x}{6}=25$

$\frac{5x}{6}=25$

$x=30$

Therefore the number is 30