SOLUTION: A student missed 16 problems on a Physics test and received a grade of
45%. If all the problems were of equal value, how many problems were on the test?
Algebra.Com
Question 1020968: A student missed 16 problems on a Physics test and received a grade of
45%. If all the problems were of equal value, how many problems were on the test?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
A student missed 16 problems
Correct/Total = Percentage
(x - 16)/x = .45 | x being how many problems were on the test
x - 16 = .45x
.55x = 16
x = 16/.55 = 29 problems were on the test
Checking
13/29 = 45%
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