Damn it! Exams!

Algebra Level 3

I had a social studies exam today. The exam was worth 20 marks, and I made a mistake for which half a mark will be cut in every question, and there were 10 questions in all.

What is the percentage of marks I would get?

The answer is 75.00.

3 solutions

Mehul Arora
May 13, 2015

Since there are 10 questions in all, and $\dfrac{1}{2}$ marks will be cut for each question, Total number of marks that will be cut are:-

$10*\dfrac{1}{2}=5$

Hence, I will score 15 marks.

Now, for the percentage;-

$\dfrac{15}{20}*100=75$ %, $[\dfrac{ \ Marks\ scored}{Total\ number\ of \ marks} *100]$

Hence the answer is 75%

Is this question based on a true story?

BTW one of my teachers in my school told me "I think you have got bronze in Manav Sthali".

So I think I have got the bronze prize.

Archit Boobna - 6 years, 1 month ago

Oh Nice! And this question is not based on a true story. :P I did well In my SST paper and I am getting 19.5/20 XD

Mehul Arora - 6 years, 1 month ago

That's nice!

Archit Boobna - 6 years, 1 month ago

Naitik Sanghavi
May 13, 2015

Total marks=20

10 questions are there so,

Now,0.5 marks will be cut from each question,so,

Total marks cut =5marks

So he got 20-5=15 marks

Therefore,he got 75% marks in his S.S exam.

I never mentioned that Each question is worth 2 marks! :P Just Kidding. It's good $\ddot\smile$

Mehul Arora - 6 years, 1 month ago

Noel Lo
May 14, 2015

$\frac{20 - \frac{1}{2} \times 10}{20} = \frac{20-5}{20} = \frac{15}{20}$ . Multiply this by 100 and you get $\boxed{75}$ %.

Damn it! Exams!

The answer is 75.00.

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