₦airaland Forum

adekayo1234: Solving this problem again involves reading it very
carefully and knowing that it means just what it
says. We are told exactly what is in each box and
also that all three labels are wrong (not just possibly
wrong). That is a lot of information, so let's draw a
grid as in problem 1, crossing off the possibilities
that any box is label correctly:
Labeled B-
B
Labeled B-
W
Labeled W-
W
Contains B-
B X
Contains B-
W X
Contains W-
W X
This problem now differs from the first in that we
must choose judiciously to fill in the rest of the
table in the fewest number of looks inside the
boxes. The best way I know to discover the answer
is to look for a choice where you are guaranteed to
learn something new. If you look first in the box
labeled B-B and you pull out a white marble, you
still haven't learned what that box contains because
it might be B-W or W-W. Similarly if you look in
the W-W box, a choice of B does not allow you even
to fill in one more cell of the table. But if you
choose the B-W box, then you are guaranteed to be
able to fill in one more cell, because if you draw out
a white marble, then that box must be the W-W. If
you draw out a black, then it must be the B-B. Let's
suppose it is white, and fill in the table:
Labeled B-
B
Labeled B-
W
Labeled W-
W
Contains B-
B X
Contains B-
W X
Contains W-
W O X
Now we can fill in the rest of column two and row
three because only one cell is left:
Labeled B-
B
Labeled B-
W
Labeled W-
W
Contains B-
B X X
Contains B-
W X
Contains W-
W X O X
And now, wonder of wonders, the first column only
has one empty cell, as does the first row, so we can
fill them in too:
Labeled B-
B
Labeled B-
W
Labeled W-
W
Contains B-
B X X O
Contains B-
W O X
Contains W-
W X O X
So the amazing thing is that by drawing only one
marble out of the box labeled B-W, we can deduce
what is in all three boxes!
If we had been bright enough to solve it without
the table we could have said that the B-W box must
be the W-W because we drew a white marble out of
it. That would mean the box labeled B-B must
contain the B-W because it is mislabeled and
cannot contain two black marbles. That leaves the
box labeled W-W to contain two black marbles.
Thus, the puzzle can be solved without using a grid,
but to me the grid method is more convincing
because the logic is so clear at each step.

The summary of my epistle is that by drawing out a single marble from the box labelled B-W, u can deduce the content of the other boxes



Google answereth all things. my 2 kobo

ernie4life: Tell them oh, I said send me a PM,and will forward it to u. I can't copy all these mails, but wen u send me a PM it's easier to forward it. Pls take note.

papiforreal: Today is my day, two front page in a single day. Glory be to Allah!

sarutobie: ..or is it the incident that happened five days ago, where a boy just blanked out in a keke, he was taken to a nearby clinic for first aid treatment. The doctor was not around, the nurse refused to help the boy saying "I can't administer any treatment to him naa, I will have to pay with my money..let someone pay for a patient card first"...can you imagine such callousness?? Tell me why I should lend an ear to the agitation of these medical "professionals"

bumfem: ma'am
I thought u said u were tired.
Continue to live in fools' paradise and in self denial.
Now that ''consultant'' is your baby, nurture it well.
Congrats.....


Yes I remember......on your prick on MB1 ,all health disciplines write same mb's in ife. I am not sure if it same in your glorified med schl.

brownlord: @bolded what do you mean? Look can you show me a doctor that is jobless after graduating from school? Even though you guys don't earn much but you are okay, why we have engineers, educationist, business administrators roaming the street with no job, look this is the problem I have with Nigeria, why do you want to compare yourself with doctors abroad when we are in Nigeria, when ASUU was coming up with their demand last year and the govt. Told them is not achievable most of Nigerians said the govt. Is heartless ASUU had their way and the result is now increment of school fees passed on to the masses and the same masses blame the govt. What happen to sowing coat according to our size.

What do you mean increasing funding for health care and we leave other sector, you think doctors are the most important, are our military men not lacking in equipment do you think it's easy to fight a terror group as boko haram with expired AK47? Will you be happy if the soldiers return to barracks because they are ill equipped? Evn though they are saying they lack equipment you still see them putting their best to crush BH then what happen to doctors demaning plate numbers, and fighting over a title, professionals, even tout won't so that.

We are our problem, everybody talk about govt, mean while who are the govt. You as a doctor, you are the president and governor to your patient in your hospital, as a lecturer you the goodluck and fashola to the student in the school, we fail in our duties and expect the politicians to do magic

Peter Paul C: Those that were shortlisted were grouped into three for the interview and possible documentation viz;
Group A will be on Tuesday 14/1/2014
Group B on Wednesday 15/1/2014
Group C on Thursday 16/1/2014 @ 9am each day.... Come with all original documents and 2 sets of photocopies in file jackets with 2 recent passports.

Mmadu111: Am so happy to be among the successful people, my name came out oooo!, am grateful to God.

lord kpakpando: CORRECT, I wish JOHESU will play a little politics by going indefinite strike for one complete month, then we would see NMA and JOHESU who is more important.

nissparts: If anyone needs a pictorial description of this process, drop your email and I'll send it to you. It's a word document with pictures and too heavy to upload here.

DammyHenry: Biko, my bis got exhausted and I wanted to renew it with the 6gb airtel plan but it wasn't working. What do I do?

SWG 1: U sound like someone saying vote for APC cos they said they want to fight corruption while internally they v not purged themselves. What they couldnt achieve as CMD (by striping those that read management their Job) and minister of health, they now want to achieve as ego driven and selfish motivated grandcommander surgeon General fed republic of Nigeria.

One day divine healing and healing water will be available to heal all kind of diseases let me now see wat the fuss about the health sector will be! lol

zube01: pls guys is the airtel 1500 subscription still working on non BB devices?

leo1234: Please what do people call indomie in a car

ScarFaceTF: *440*161# for one month at N1500
for 4 Gigabytes *440*16# for one month at N1500
for 2 Gigabytes

write2obi: Erm Erm today is 3rd, but am still cruising my airtel . or maybe am immune to the tin I did not even get the text.

leo1234: mtn here l come.