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After spending 7/9 of a three hours examination, a student left the exams hall. How many minutes has he to complete the duration of the examination.​

After spending 7/9 of a three hours examination, a student left the exams hall. How many minutes has he to complete the duration of the examination.​
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after spending 7/9 of a three hours examination, a student left the exams hall. How many minutes has he to complete the duration of the examination.​

User Simone Colnaghi
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1 Answer

4 votes
40 mins left! total time= 60 mins x 3 hours =180 mins. 180 divided by 9 is 20. 20 times 7 is 140. 180-140 equals 40. yay!
User Fred Faust
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8.2k points
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