Question

In a group of 30 people 2 by 5 support team A and remaining support team B how many people support team B

Answer 1

$$\begin{gathered} \mathrm{Total}\mathrm{number}\mathrm{of}\mathrm{people}=30 \\ \mathrm{Fraction}\mathrm{of}\mathrm{people}\mathrm{who}\mathrm{support}\mathrm{team}\mathrm{A}=\frac{2}{5} \\ \mathrm{Fraction}\mathrm{of}\mathrm{people}\mathrm{who}\mathrm{support}\mathrm{team}\mathrm{B}=1-\frac{2}{5}=\frac{3}{5} \\ \mathrm{Number}\mathrm{of}\mathrm{people}\mathrm{who}\mathrm{support}\mathrm{team}\mathrm{B}=\frac{3}{5}\mathrm{of}30=\frac{3}{5}\times 30=18 \end{gathered}$$