Question

Ketan scored 640 marks out of 800 then find his percentage?  please give me answer with explanation ​

Answer 1

☯ Marks obtain by Ketan is 640.

☯ Total Marks is 800.

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$\underline{\bigstar\:\boldsymbol{According \;to \;the\: given \;Question\; :}}$

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Therefore,

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• Suppose the marks obtained by Ketan be x%. Let us write in two forms, the ratio of number of marks obtained to the total marks, obtain an equation and solve it.

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Then we have,

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$\:\:\:\:\:\:\::\:\Longrightarrow\sf\:{\dfrac{x}{100}}\:=\:{\dfrac{640}{800}}$

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$\:\:\:\:\:\:\::\:\Longrightarrow\sf\:{\dfrac{x}{100}}\:\times\:100$

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$\:\:\:\:\:\:\::\:\Longrightarrow\sf\:{\dfrac{640}{800}}\:\times\:100$

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$\:\:\:\:\:\:\::\:\Longrightarrow\:{\underline{\boxed{\frak{\pink{x\:=\:80}}}}}\:\bigstar$

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$\:\therefore\:{\underline{\sf{ Then,\:Ketan\:percentage\:is\:{\textsf{\textbf{80\:\% }}}}}}.$

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