The formula for the volume of a cylinder is v=πr²h. the volume of a cylinder is three times the volume of a cone with the same radius and height. if the volume of a cone with the same height as a cylinder equals the volume of a cylinder, the equation for the radius of cone are in terms of the radius of cylinder r

Solve the problem by using a venn diagram a group of students were surveyed about their taste in music.they were asked how they like three types of music: rock, country western and jazz.the results are summarized below: no one dislikes all three types of music.six like all three types of music.eleven don’t like country western.sixteen like jazz.three like country western and jazz, but not rock.six don’t like rock.eight like rock and country western.seven don’t like jazz.how many students were surveyed?