Would someone help me? For some reason, I always get this one wrong /:
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OpenStudy (anonymous):
ganeshie8 (ganeshie8):
what did u get ?
OpenStudy (anonymous):
12...
OpenStudy (anonymous):
Because there are two options for each question, right or wrong.
ganeshie8 (ganeshie8):
thats a very close guess :)
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ganeshie8 (ganeshie8):
yes !!
ganeshie8 (ganeshie8):
the only mistake you're doing is adding, instead of multiplying
ganeshie8 (ganeshie8):
total possible outcomes = 2x2x2x2x2x2 = 2^6
OpenStudy (anonymous):
Ohh... So the answer is 64?
ganeshie8 (ganeshie8):
Yep !
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OpenStudy (anonymous):
What about this one?
ganeshie8 (ganeshie8):
whats ur guess
OpenStudy (anonymous):
30, because 5*2*3.. but I feel it's wrong.
ganeshie8 (ganeshie8):
5 companies to choose from
each has either ground/air shipping options(2)
and they can be standard/express/overnight(3)
ganeshie8 (ganeshie8):
so total unique shipment options = 5*2*3 = 30
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ganeshie8 (ganeshie8):
You're absolutely right !!
OpenStudy (anonymous):
Yay, thank you so much!
OpenStudy (anonymous):
Is the answer 12?
ganeshie8 (ganeshie8):
yw
OpenStudy (anonymous):
Is the answer 12 on the above question @ganeshie8 ?
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ganeshie8 (ganeshie8):
how did u get 12
OpenStudy (anonymous):
3 places to fill 3 people.. 3^3 actually 27:) lol
ganeshie8 (ganeshie8):
good try, but no, there are indeed 7 people competing for 3 different roles right ?
OpenStudy (anonymous):
Oh yes..
ganeshie8 (ganeshie8):
So ?
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OpenStudy (anonymous):
7^3= 343
OpenStudy (anonymous):
???
ganeshie8 (ganeshie8):
You're almost right !
ganeshie8 (ganeshie8):
Just keep in mind that these actors dont play double roles
ganeshie8 (ganeshie8):
So its something like this :
there are 7 actors available for first role : 7 ways
after that, there are only 6 actors available for second role : 6 ways
after that, there are only 5 actors available for third role : 5 ways
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OpenStudy (anonymous):
Yeah.. So.. 343 subtract something?
ganeshie8 (ganeshie8):
So, total number of unique arrangements = 7*6*5 = ?
OpenStudy (anonymous):
210!(:
OpenStudy (anonymous):
210:)
ganeshie8 (ganeshie8):
Yep!
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