Question

(b) Find a number whose -
(a) 75 % is 225​

Answer 1

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Let x be the number

$\longmapsto \sf 75\% \: of \: x \: is \: 225$

$\longmapsto \sf \frac{75}{100} \times x = 225$

$\longmapsto \sf x = 225 \times \frac{100}{75}$

$\longmapsto \sf x = 75 \times 4$

$\longmapsto \sf x = 300$

Answer 2

$225 \times \frac{75}{100} \\ \\ 225 \times \frac{3}{4} \\ = \frac{675}{4} \\ = 1680.25$