Mathematics
Mathematics, 19.08.2019 03:00, moraleserica011

There are 80 students in a speech contest. yesterday 1/4 of them gave their speeches. today 2/5 of the remaining students gave their speeches. how many students still haven't given their speeches?

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There are 80 students in a speech contest. yesterday 1/4 of them gave their speeches. today 2/5 of t...

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