A video cassette tape has a running time of 2 hours while at standard speed, 5 hours while at long-play speed, and 7 hours while at super long-play speed. If 2/5 of the tape is recorded at standard speed, 1/3 at long-played, and 4/15 at super long-speed, What is the total running time of the video cassette tape? Write the Solution as a mixed number or a fraction in lowest terms.
