ack had 4 hours of school. He spent 45 minutes in the library and 30 min on a science lecture and had a lunch break of 25 minutes. How much time is left for the school to get over? (Write the answer as a fraction.)
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Answer:
total school hours = 4 hours = 60mins× 4 = 240 mins
time spent in library = 45 mins
time spent for science lecture = 30 mins
time spent for lunchbreak = 25 mins
total time spent by jack = 45 + 30+25 = 100 mins
therefore time left = 240mins -100 mins
= 140 mins
= 140 / 240 mins
=14/24 mins ( divided by 10)
= 7/ 12 ( in simplest form)
Hope this helps you
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