Question 102475
Per cent means "per one hundred"
You can rewrite the problem to say:
"Express 10 per 60 as x per 100"
{{{10/60 = x/100}}}
Then solve for x
multiply both sides by 100 
{{{x = 100(10/60)}}}
{{{x = 16.67}}} answer
Expressed as a fraction, {{{16.67/100 = 10/60}}}