SOLUTION: if I have 150 questions on a test and I need to pass with a 70% how many questions can I get wrong

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Question 884633: if I have 150 questions on a test and I need to pass with a 70% how many questions can I get wrong
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!

first find out how many questions you need to get right to have 70% out of 150
70% or 70%2F100=0.70 out of 150 is: 150%2A0.70=105
so, you need to get 105 out of 150 questions right is to have 70%

it means, you can miss 150-105=45 questions for a 70%