SOLUTION: Airport activity O'Hare International Airport in Chicago has a flight leaving for New York every 45 minutes and a flight leaving for Atlanta every 60 minutes. If a flight to New

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Question 2419: Airport activity
O'Hare International Airport in Chicago has a flight leaving for New York every 45 minutes and a flight leaving for Atlanta every 60 minutes. If a flight to New York and a flight to Atlanta leave at the same time, how many minutes will it be before a flight to New York City and a flight to Atlanta again leave at the same time?
Work Schedules
Sara Pappas and Harry Kinnan both work the 3:00 pm to 11:00 pm Shift. Sara has every fifth night off and Harry has every sixth night off. If they both have tonight off, how many days will pass before they have the same night off again?
Found 2 solutions by khwang, borzeya:
Answer by khwang(438) About Me  (Show Source):
You can put this solution on YOUR website!
Same idea about LCM for these two question.
1) The LCM of 45=3^2*5 & 60=2^2*3*5 is 2^2*3^2*5 = 180 min
2) The LCM of 5 and 6 is 30 nights

Kenny

Answer by borzeya(6) About Me  (Show Source):
You can put this solution on YOUR website!
45=3*3*5
60=2*2*3*5
180=2*2*3*3*5===>>>180
50=2*5*5
60=2*2*3*5
300=2*2*3*5*5===>>>300