Let x be the required number.
[tex]15\text{ \% of 80 =}60\text{ \% of x}[/tex][tex]15\text{ \% }\times\text{ 80 =}60\text{ \% }\times\text{ x}[/tex][tex]\frac{15}{100}\text{ }\times\text{ 80 =}\frac{60}{100}\text{ }\times\text{ x}[/tex]
Using the cross-product method, we get
[tex]\frac{15\times80}{100}\times\frac{100}{60}=x[/tex][tex]x=20[/tex]Hence 15% of 80 is 60% of 20.
The answer is 20.
