Question

11 is 40% of whst number

Answer 1

11 = 40% × x
11 = .40x
11/.40 = x
27.5 = x

So 11 is 40% of 27.5

Answer 2

11 is 40% of 27.5

Change the percentage to a decimal by dividing it over 100:
$\frac{40}{100} = 0.4$

Divide 11 over 0.4:
$\frac{11}{0.4} = 27.5$