Question

in a class of 49 student number of girls is 2 by 5 of the boys find the number of boys in the class

Answer 1

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$\huge{\underline{\underline{\sf{\blue{SOLUTION:-}}}}}$

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$\sf{\underline{\green{AnswEr:-}}}$

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• The number of boys in the class = 35

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$\sf{\underline{\green{Given:-}}}$

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• In a class of 49 student, number of girls is 2/5 of the boys.

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$\sf{\underline{\green{Find:-}}}$

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• The number of boys in the class = ?

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$\sf{\underline{\green{Explanation:-}}}$

Let the number of boys be y.

$\:\:\:\:\dag\bf{\underline{\underline \red{Then:-}}}$

• Girl = $\sf{\dfrac{2y}{5} }$

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$\sf{\underline\pink{A.T.Q:-}}$

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$\longrightarrow \sf {\dfrac{y}{1} + \dfrac{2y}{5} = 49}$

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$\longrightarrow \sf {\dfrac{5y + 2y}{5} = 49}$

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$\longrightarrow \sf {\dfrac{7y}{5} = 49}$

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$\longrightarrow \sf {y = \dfrac{49 \times 5}{7} }$

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$\longrightarrow \sf {y = 35}$

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$\:\:\:\:\dag\bf{\underline{\underline \red{Hence:-}}}$

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• The number of boys in the class is 35.

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$\rule{200}{2}$

Answer 2

Answer:

same as upside