Question

3.5% of which number is 12 ?
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Answer 1

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let the number be x

3.5% = 35/100

35/100 of x = 12

35x/100 = 12

35x = 1200

x = 1200/35

x ≈ 34.29

Answer 2

Step-by-step explanation:

let,

the number be "x"

=>

$3.5 \: percentage \: of \: x = 12$

=>

$\frac{3.5}{100} \times x = 12$

=>

$\frac{35x}{1000} = 12$

=>

$35x = 12000$

=>

$x = \frac{12000}{35}$

=>

$x = \frac{2400}{7}$

therefore,

the number is "2400/7"