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There are 90 students in a speech contest. Yesterday, 2/5 of them gave their speeches. Today 1/3 of the remaining students gave their speeches. How many students still haven't given their speeches?
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There are 90 students in a speech contest. Yesterday, 2/5

of them gave their speeches. Today 1/3 of the remaining students gave their speeches. How many students still haven't given their speeches?

User Nedblorf
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Answer: \\ 90 - (2)/(5) * 90 - (1)/(3) * (2)/(5) * 90 = 36 \\ \Rightarrow 36 \: students \: haven't \: given \: their \: speeches
User Jaydeep Khamar
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