Thomas takes a break from his work every 20 minutes while elaine takes a break every 30 minutes. how often do they take a break at the same time assuming that they start work together?

Tyler enjoys the fish so much that after his birthday his family decides to take him to a famous aquarium a tank at the aquarium is similar to his tank with the scale factor of 8 how many times greater is the volume of the tank at the aquarium than the volume of tyler tank