Question 42068
3 and 1/4 of what number is 8,125? 
How many 1/4's are there in 3?
{{{3/(1/4) = 12}}}
12/4 + 1/4 = 13/4
Let x = number to be found
{{{(13/4)*x = 8125}}}
Multiply both sides by 4/13
{{{x = (4/13)* 8125}}}
{{{x = 2500}}}