The senior classes at High School A and High School B planned separate trips to New York City. The senior class at High School A rented and filled 12 vans and 3 buses with 324 students. High School B rented and filled 6 vans and 8 buses with 474 students. Every van had the same number of students in it as did the buses. Find the number of students in each van and in each bus.

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?