Question

determine the value of the expressions
1.e. 30% of 60
1.h. 25% of 960
1.k. 80% of 225

Answer 1

\(\bf {\color{brown}{ a}}\%\ of\ b \implies \cfrac{{\color{brown}{ a}}}{100}\cdot b\implies {\color{brown}{ a}}\div 100\cdot b\qquad thus
\\ \quad \\ \quad \\
{\color{brown}{ 30}}\%\ of\ 60 \implies \cfrac{{\color{brown}{ 30}}}{100}\cdot 60\implies {\color{brown}{ 30}}\div 100\cdot 60
\\ \quad \\
{\color{brown}{ 25}}\%\ of\ 960\implies \cfrac{{\color{brown}{ 25}}}{100}\cdot 960\implies {\color{brown}{ 25}}\div 100\cdot 960
\\ \quad \\
{\color{brown}{ 80}}\%\ of\ 225 \implies \cfrac{{\color{brown}{ 80}}}{100}\cdot 225\implies {\color{brown}{ 80}}\div 100\cdot 225\)