Question

$9 is 45\%ofwhich number$
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Answer 1

$\huge\mathbb{SOLUTION:-}$

• Let the number be x

$\bf\underline{\red{According\:To\: Question:-}}$

$\boxed{\sf{45\%\:\: of \:\:x=9}}$

$\sf\implies 45\%\:of\:\: x=9\\ \\ \sf we\:can\:write\:\frac{1}{100}\:at\:the\: place\:of\: \%\\ \\ \sf \: because\:value\:of\:\%is\:\dfrac{1}{100}\\ \\ \sf\implies \cancel{45}\times \dfrac{1}{\cancel{100}}\times x=9\\ \\ \sf\implies \dfrac{9}{20}\times x=9\\ \\ \sf\implies x=\dfrac{\cancel{9}\times 20}{\cancel9}\\ \\ \sf\implies x= 20$

• The value of x is 20

• 45%of 20 is 9

$\underline{\boxed{\sf{\purple{The\: Number\:is\:20}}}}$

Answer 2

$\huge{\blue{\boxed{\boxed{\boxed{\pink{\underline{\underline{\mathcal{\red{♡SolUtioN♡}}}}}}}}}}$

${45\%\:Of\:x} = {9}$

$⟹ {}{45}×\frac{1}{100}× {x=9}$

$⟹ {}\frac{9}{20}× x= {9}$

$⟹ {x} = {}\frac{9×20}{9}$

$⟹ \red{x} \red= \red{20}$