39
78
yes
40
78%
39
In order to score 78% correct on a test with 150 questions, assuming that every one of the 150 answers is given equal weight, you must answer exactly 33 questions incorrectly. No more, no less.
Assuming each question is worth 1 mark, 78% of 32 = 78/100 × 32 = 24.96 As it is unlikely that you will get 0.96 of a question/mark, you will need to get 25 questions right to guarantee getting 78% - you will actually get 78⅛ % which would be rounded to 78% to the nearest whole percentage.
78
yes
40
93
78%
If you get 7 wrong you'll get 23/30 = 76.66... % Not enough. So fewer than 7. But that is provided that wrong answers score 0 and do not have penalties.
find average score on math test 78, 47, 78, 100, 47
90% of 78 = 90% * 78 = 0.9 * 78 = 70.2
44 percent of 78 = 34.32 44% of 78 = 44% * 78 = 44%/100% * 78 = 0.44 * 78 = 34.32