Math question on himework

Question

A student missed 58 problems on a test and received 27% if all problems were equal value how many problems were on test

Answer 1

This problem can be solved using ratios. Since he received 27% for the problems he got right, the 58 problems would actually represent 100% - 27% or 73% of the total number of problems (recall that 73% is equal to 73/100). Let x represent the total number of problems on the test.

73 = 58

100 x

Using cross products:

73 * x = 100 * 58

73 * x = 5800

x = 5800/73

x = 79 questions