“There was a test with 20 questions. For each correct answer, 10 points would be rewarded while 5 points would be deducted for answering wrongly. I managed to receive a score of 125 points for answering all the questions. How many questions have I answered wrongly?”
Some people would have a hard time answering to the question above as it had a mixture of words and numbers. It can be rather confusing at times too. Do you have what it takes to solve the question or you really do need a Math tutor to guide you through every step in the problem solving? It may be easy for this time but do you think the question would get any easier as you progress into your college days?
Somehow or other, it’s best to seek some Math help in your earliest age to build up a strong foundation. There’s the saying that it’s never too late to learn but won’t you think it’s a good step to start early too to gain the wisdom you would need in your later stage of life?
Anyway, here’s the solution to the Math question above.
A perfect score: 20 questions x 10 points = 200 points
My score: 125 points (meaning I lost 75 points: 200 points - 125 points)
Each wrong answer I lose out 15 points (10 points incorrect + 5 points deduction)
Thus, I got 5 questions wrong (75 points divided by 15 points)