SOLUTION: what is your score in a test if there was 40 questions and 4 were wrong

Algebra ->  Probability-and-statistics -> SOLUTION: what is your score in a test if there was 40 questions and 4 were wrong      Log On


   

Question 439058: what is your score in a test if there was 40 questions and 4 were wrong
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

Divide the amount of questions into 100, which is the highest score a student can receive on a test.
40%2F100=0.4........The number you received from dividing into 100 is how much each question is worth.

Take the number you received from dividing into 100 and multiply it with the amount of wrong answers.


4 were wrong, so 4%2A0.4=1.6...and subtract the amount that you received that represents the wrong answers from 100

100-1.6=98.4...........this is your score