Question

একটি ছাত্র কোন পরীক্ষায় 40 পেয়েও 20 নম্বরের জন্য ফেল করেছে যদি পাশ নম্বর 30 শতাংশ হয় তবে পূর্ণমান কত?​

Answer 1

The full marks is 200.

• A value or ratio that may be stated as a fraction of 100 is referred to as a percentage in mathematics. If we need to calculate a percentage of a number, we should divide it by its entirety and then multiply it by 100. The proportion therefore refers to a component per hundred. Per 100 is what the word percent means. The word "percent" is used to symbolise it.
• We must divide the value by the entire value to find the percentage, and then multiply the resulting number by 100. The original number is subtracted from the new number, divided by the original number, then multiplied by 100 to get the % increase.

Here, according to the given information, we are given that,

A student gets 40 in an exam but fails for 20 marks.

Now, 30 is the pass mark out of 100.

1 is the pass mark out of, $\frac{100}{30}$

Then, 60 is the pass mark out of $\frac{100}{30} .60 = 200$.

hence, the full marks is 200.

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