what percent of students preferred rock and roll music, rock and roll 270 if 1950 were polled and completed

Question

Students at a high were polled to determine the type of music they preferred. There were 1950 students that completed the

poll. What percent of students preferred rock and roll music. Rock and roll were 270.

Answer 1

What percentage of 1950 is 720?    Or, 720 is x percentage of 1950; what is x?

 

Find decimal value of fraction, then multiply by 100% to get percent:

      270/1950  =  0.138462  =  0.138 (rounded) *100%   =  13.8%