Question

28% of 80 is what number?
A. 22.4
B. 2.24
C. 224
D. 24.4

Answer 1

$28\%\cdot80=0.28\cdot80=22.4\Rightarrow A$

Answer 2

p%=$\frac{p}{100}$

$\frac{28}{100}= \frac{28\div4}{100\div4}= \frac{7}{25}$

$\frac{7}{25}*80= \frac{560}{25} = \boxed {22,4}$