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class Duration: def_init (self, hours, minutes): self.hours hours self.minutes minutes def_add_ (self, other) : if not isinstance (other, Duration): return 'oops' total_hours = self.hours + other.hours total minutes = self.minutes + other.minutes if total_minutes >= 60: total_hours += 1 total minutes return Duration(total_hours, total_minutes) -= 60 one_way_time = Duration (4, 30) round_trip_time = one_way_time + one_way_time print (one_way_time + 53) print (round_trip_time.hours, round_trip_time.minutes)

class Duration: def_init (self, hours, minutes): self.hours hours self.minutes minutes def_add_ (self, other) : if not isinstance (other, Duration): return 'oops' total_hours = self.hours + other.hours total minutes = self.minutes + other.minutes if total_minutes >= 60: total_hours += 1 total minutes return Duration(total_hours, total_minutes) -= 60 one_way_time = Duration (4, 30) round_trip_time = one_way_time + one_way_time print (one_way_time + 53) print (round_trip_time.hours, round_trip_time.minutes)

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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The first image is an example which shows the right answer. I want to know the output for the second one. Using python

Type the program's output class Duration: def init (self, hours, minutes): self.hours = hours self.minutes = minutes (self, other): if not isinstance (other, Duration): return 'oops' def add oops 4 6 total hours = self.hours + other.hours total minutes = self.minutes + other.minutes if total minutes >= 60: total hours += 1 total minutes -= 60 return Duration(total_hours, total_minutes) one_way time = Duration(3, 52) round trip time = one way time + one_way_time print(one_way_time + 59) print(round_trip_time.hours, round_trip_time.minutes) 1 3 Check Next *_add_0 begins by calling isinstance() to verify that the argument is an instance of the Duration class. isinstance(other, Duration) returns True if other is an instance of Duration and False otherwise. If other is not an instance of Duration, _add_() outputs oops. Otherwise, _add_) returns the result of adding other to self. oops Yours 4 6 oops Expected 7 44
Transcribed Image Text:Type the program's output class Duration: def init (self, hours, minutes): self.hours = hours self.minutes = minutes (self, other): if not isinstance (other, Duration): return 'oops' def add oops 4 6 total hours = self.hours + other.hours total minutes = self.minutes + other.minutes if total minutes >= 60: total hours += 1 total minutes -= 60 return Duration(total_hours, total_minutes) one_way time = Duration(3, 52) round trip time = one way time + one_way_time print(one_way_time + 59) print(round_trip_time.hours, round_trip_time.minutes) 1 3 Check Next *_add_0 begins by calling isinstance() to verify that the argument is an instance of the Duration class. isinstance(other, Duration) returns True if other is an instance of Duration and False otherwise. If other is not an instance of Duration, _add_() outputs oops. Otherwise, _add_) returns the result of adding other to self. oops Yours 4 6 oops Expected 7 44
Type the program's output class Duration: def init (self, hours, minutes) : self.hours = hours self.minutes = minutes def add (self, other): if not isinstance (other, Duration): return 'oops' total hours = self.hours + other.hours total minutes = self.minutes + other.minutes if total minutes >= 60: total hours += 1 total minutes -= 60 return Duration(total hours, total minutes) one_way time = Duration(4, 30) round_trip_time = one_way_time + one_way_time print(one_way_time + 53) print(round_trip_time.hours, round_trip_time.minutes) 2 3 4 Check Next
Transcribed Image Text:Type the program's output class Duration: def init (self, hours, minutes) : self.hours = hours self.minutes = minutes def add (self, other): if not isinstance (other, Duration): return 'oops' total hours = self.hours + other.hours total minutes = self.minutes + other.minutes if total minutes >= 60: total hours += 1 total minutes -= 60 return Duration(total hours, total minutes) one_way time = Duration(4, 30) round_trip_time = one_way_time + one_way_time print(one_way_time + 53) print(round_trip_time.hours, round_trip_time.minutes) 2 3 4 Check Next
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