Question

there are 1200 students in a school out of them 540 are girls find the percentage of the boys in the school​

Answer 1

Answer:

55%

Step-by-step explanation:

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Answer 2

Given: Number of students in the school are 1200. & Out of 1200 students 540 are girls.

Need to find: The percentage of the boys in the school?

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❍ Let the number of boys in the school be x.

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As we know that,

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$\begin{gathered}\star\:{\underline{\boxed{\frak{Boys_{\:(x)} = Students - Girls }}}}\\\\\\ \bf{\dag}\:{\underline{\frak{Putting\:given\:values\:in\:formula,}}}\\\\\\ :\implies\sf x = 1200 - 540\\\\\\ :\implies\sf {\underline{\boxed{\frak{\purple{x = 660}}}}}\:\bigstar \\ \\ \\ \frak \dagger \frak { \: \: Now, Percentage : }\\\\\\ \leadsto\boxed{\frak{ Percentage = \frac{Boys}{Students_{(Total)} } \times 100} }\\\\\\ :\implies\sf \frac{660}{1200} \times 100 \\\\\\ :\implies\sf \frac{660}{12} \\ \\ \\ : \implies{\underline{\boxed{\frak{\purple{55\%}}}}}\:\bigstar \\\\\end{gathered}$

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Therefore,

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Number of boys in the school, x = 660

Percentage of boys in the school, 55%.

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$\therefore\:{\underline{\sf{Hence,\:Percentage \: of \: boys \: in \: the \: school \: is \: {\bf55\%}.\sf{respectively}.}}}$