20578jb
31.03.2021 •
Mathematics
"Oh no!" shouted Ken to his family, as they hiked along in the Grand Tetons."
left the other pack in the car - the one that had the food for breakfast and lunch
today" Everyone was disappointed. They had started hiking before dawn and were
very hungry. When they were packing up for the trip they had put one sixth of the
food packets into the separate pack. Then Ken had packed two fifths of the
packets left. Next Darlene put one half of what was left in her pack. Then Kelly
and Kasey each packed one third of what was leht. Finally Kendra put the last 5
packets in her pack. How many packets did the family begin with altogether for
the trip?
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Ответ:
Since we are trying to arrange the classes in a sequence where none repeat, we are going to use a factorial, represented by
, where 
is the number of items in the sequence.
Since we have four items in our sequence (four classes), our answer is going to be equal to
, which is equal to 24, as shown below:
There are 24 different ways.