Commuter trains depart from North Station every 10 minutes, Subway trains depart every 3 minutes. A subway train and a commuter train both leave the station at 8:15. How long will it be before the subway train and the commuter train departs again at the same time?

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar. a city water tank holds 20 gallons of water. a technician empties 25% of the tank. how many more gallons of water must be removed from thetank so that it has 5 of the water that it started with: the technician must removemore gallons of water for the tank to have 5 of the water that it started with.