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nauticatyson9
19.04.2021 •
Mathematics
There are 50 students in a class three of them will be in a student government, either president, Vice President, or secretary. How many different arrangements are there among 50 students?
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Ответ:
Ответ:
do 20 divide 5/4 (=1 1/4)
so 20 * 4/5 which would be 80/5; simplifies to 16 cans