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Mathematics 8 Online
OpenStudy (mathmath333):

question (logical reasoning)

OpenStudy (mathmath333):

A man would like to take a new health insurance. An officer taking care of these matters says to the man: "Please tell me how many children you have." The man answers: "I have three of them." The officer: "What are the ages of your children?". The man answers: "The product of the ages is equal to 36." The officer replies: "This is not enough information Sir!". "Sorry that I was a little bit unclear, but the sum of the ages is equal to the number of shops in front of your office," says the man. The officer: "This still isn't enough information Sir!". The man replies: "My oldest child loves chocolate." The officer: "Thanks for your cooperation,I now know the ages." Are you as smart as the officer? Then give the sum of the ages of the children. \(\large \color{black}{\begin{align} & a.)\ 13 \hspace{.33em}\\~\\ & b.)\ 22 \hspace{.33em}\\~\\ & c.)\ 36 \hspace{.33em}\\~\\ & d.)\ 38 \hspace{.33em}\\~\\ \end{align}}\)

OpenStudy (daniellelovee):

ok so we have to find xyz that x*y*z=36

OpenStudy (mathmath333):

yes

OpenStudy (mathmath333):

i have also found a link to answer which isn't making sense to me http://www.pzzls.com/insurance_company_puzzle/solution.html

OpenStudy (daniellelovee):

The product of the ages is 36. Using this one can make the following combination of ages: 1,36, 1 sum = 38 1,18, 2 sum = 22 1,12, 3 sum = 16 1, 9, 4 sum = 14 1, 6, 6 sum = 13 2, 9, 2 sum = 13 2, 6, 3 sum = 11 3, 3, 4 sum = 10 After the man had said that the product of the ages is equal to 36, the officer didn't have enough information. Then he was told that the sum is equal to number of shops in front of the office. He replied by saying that this still isn't enough information. So the sum of the ages should be 13, because otherwise he would have known the ages immediately. The last statement is that that the oldest child loves chocolate. So there is an oldest child. Hence the officer concludes that the ages of the children are 2, 2 and 9 years.

OpenStudy (mathmath333):

what does this mean-> "My oldest child loves chocolate."

OpenStudy (daniellelovee):

that there should be one that is the oldest of them all :)

ILovePuppiesLol (ilovepuppieslol):

it means that they are not all the same age

OpenStudy (daniellelovee):

did you read what I posted?

OpenStudy (mathmath333):

yea i read that it is not understable to me

OpenStudy (daniellelovee):

ok tell me which part so I can clarify :)

OpenStudy (mathmath333):

how can the ages be 2,2,9 because of staement "my oldest son loves choclate"

OpenStudy (daniellelovee):

oh is not mostly about that statement let me explain more so that you can understand for the first statement we have that they all have to equal 36 as a product therefore you start dividing 36 by 1 but that would be 1,0,36 and 0 is not an age so we keep going, by 2, etc. Then we have that it is is equal to number of shops in front of the office. The only number giving two answers that are the same are the numbers that end both adding 13, that is why he said that he didn't have enough information. And Lastly the chocolate one means that there HAS to be an older child and so far we had 1, 6, 6 sum = 13 2, 9, 2 sum = 13 and 6 and 6 would mean that they are twins so they can't be older than the other that is why 2,9,2 is the answer because 9 is older than 2,2(twins)

OpenStudy (mathmath333):

but the total number of shops is not given here

OpenStudy (daniellelovee):

no but the person did the math and his following sentence was that there was not enough information there if we look at the list of the products he would have guesses any other option that wasn't repeated 1,36, 1 sum = 38 1,18, 2 sum = 22 1,12, 3 sum = 16 1, 9, 4 sum = 14 1, 6, 6 sum = 13<--repeated 2, 9, 2 sum = 13<--repeated 2, 6, 3 sum = 11 3, 3, 4 sum = 10

OpenStudy (daniellelovee):

but since that was repeated he couldn't know it would be almost as if I told you ABC DBA GHF OKJ and I told you that my name had 3 different letters that are the same as the number of siblings I have

OpenStudy (daniellelovee):

you wouldn't know but BB and AA are repeated so now you narrow down to 2 options

OpenStudy (daniellelovee):

makes sense now?

OpenStudy (mathmath333):

ok thnks

OpenStudy (daniellelovee):

no problem :)

OpenStudy (mathmath333):

this wass not a math question lol

OpenStudy (mathmath333):

i am so dumb

OpenStudy (daniellelovee):

nah is ok no worries :)

OpenStudy (mathmath333):

i shud have applied common sense

OpenStudy (daniellelovee):

yes but don't worry I had a problem like this 2 ago in my class and I didn't get it either because I didn't use logic just like you said :)

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