Ellie is dropping marbles into a box one at a time in the following order: red, white, white, blue, blue, blue; red, white, white, blue, blue, blue; ... How many marbles will be in the box right after the 100th blue one is put in?
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OpenStudy (gorv):
first consider a small box 1 with
red white white blue blue blue
just six marble in small box 1 .....we are putting these small boxes in larger one
OpenStudy (gorv):
now in each box there are 3 blue marble
OpenStudy (gorv):
considering 3 in each small box how many small box are needed to make 100 ??
OpenStudy (inowalst):
Divide 100/3 ?
OpenStudy (texaschic101):
look at it this way...for every 6 marbles, 3 of them are blue
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OpenStudy (gorv):
yeah that means 33 complete small box + 1 box is in complete
OpenStudy (gorv):
in 33 small boxes blue marbles = 33*3 =99
OpenStudy (gorv):
so first marble in next small box will be 100th blue agree??
OpenStudy (inowalst):
Yes.
OpenStudy (gorv):
in 33 box each have total 6 marble
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OpenStudy (gorv):
so in 33 box total number of marble =???
OpenStudy (inowalst):
33*6?
OpenStudy (texaschic101):
yes
OpenStudy (gorv):
yes
OpenStudy (inowalst):
I meant.. 198.
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OpenStudy (gorv):
99 blue and total 33*6 marble
OpenStudy (gorv):
now in next box first we will put which marble ???
OpenStudy (gorv):
before blue ??
OpenStudy (inowalst):
white
OpenStudy (gorv):
198+1=199
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OpenStudy (gorv):
after white ??
OpenStudy (inowalst):
Oh, blue. Sorry.
OpenStudy (texaschic101):
no...what comes before white
OpenStudy (inowalst):
Red..
OpenStudy (gorv):
red +white+white ....do we put theses before blue ????
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OpenStudy (inowalst):
Yes.
OpenStudy (gorv):
so total = 198+1 red+ 2white=198+3=201
OpenStudy (texaschic101):
so there is 3 marbles before the last blue one
OpenStudy (inowalst):
Okay.
OpenStudy (gorv):
so now we have total 201 but 99 blue so we need to put one blue agree??
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OpenStudy (gorv):
to make blue = 100
OpenStudy (inowalst):
Yes.
OpenStudy (gorv):
so total marble after 100th blue =??
OpenStudy (inowalst):
301?
OpenStudy (gorv):
in 201 we have 99 blue and we are just adding only one more blue
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OpenStudy (texaschic101):
201 marbles + 1 blue marble =
OpenStudy (gorv):
201+1blue =??
OpenStudy (inowalst):
202.
OpenStudy (texaschic101):
BINGO :)
OpenStudy (gorv):
u did it :)
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