In: Math
On a 25 questions Math test, Peter got 60% of the 10 algebra questions correct, 80% of the 10 geometry questions correct and 60% of the 5 trigonometry questions correct. What percentage of all the questions did Peter get correct?
60% of the 10 algebra questions correct
60% * 10 = 6
80% of the 10 geometry questions correct
80% * 10 = 8
60% of the 5 trigonometry questions correct
60% * 5 = 3
Total number of questions correct
6 + 8 + 3 = 17
Percentage of correct questions that Peter got correct is
17 / 25 = 0.68 = 68%
68%