Problem
Findthefollowing androundtothenearesttenth:
a) 90%of whatnumberis 262?
b) Whatpercentof45is329?
Solution
Part a
For this case we can do the following:

And solving for x we got:
x= 100 (262/90)= 291.1
Part b
For this case we can do the following:

And we can conclude that the answer is 13.68%