1.

A student who gets 20% marks fails by 10 marks but another student who gets 42% marks gets 12% of maximum marks. Find the maximum marks​

Answer»

Answer

  • Maximum marks = 100

Given

  • A student who GETS 20 % marks fails by 10 marks but another student who gets 42 % marks gets 12 % more than PASSING marks .

To Find

  • Maximum marks

Solution

Let the maximum marks be " x "

A/c , " A student who gets 20% marks fails by 10 marks but another student who gets 42% marks gets 12%  more than passing marks"

\rm \implies 20\ \% \times x+10=42\ \% \times x -12\ \% \times x\\\\\implies \rm \dfrac{20}{100} \times x+10=\dfrac{42}{100}\times x-\dfrac{12}{100} \times x\\\\\implies \rm \dfrac{20x+1000}{100}=\dfrac{42x-12x}{100}\\\\\implies \rm 20x+1000=30x\\\\\implies \rm 30x-20x=1000\\\\\implies \rm 10x=1000\\\\\implies \rm x=100

So , Maximum marks , x = 100


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