Question

What is 20% off of £1.85? ^_^

Answer 1

$p\%=\frac{p}{100}\\\\20\%=\frac{20}{100}=0.2\\\\20\%\ of\ \£1.85\ is\ 0.2\ \times\ \£1.85=\£0.37$

Answer 2

 £1.85 ________ 100 %
       x ________ 20 %

100x = 20 . 1,85
100x = 37
x = 37 / 100
x = 0,37

is  £0,37 !