A Math Problem From Singapore Goes Viral: When Is Cheryl’s Birthday?

[truthseeker2010]

 

[SelfServeFive]

July 16

 

[Jungibaaz]

Best way to get Cheryl's birthday is to steal her info, and bypass the logic and maths.

July 16

So I've heard, it took a lot of assumptions to get there.

 

[rubyjackass]

Bernard would have known if it were 18th or 19th, i.e., if it were may or june. So it has to be July or August. How did you eliminate the rest? Bernard know the date now. WHIch leaves

July 16, August 15, August 17

OK got that

 

[Shamain]

Answer is that Cheryl was never born.

 

[rubyjackass]

Best way to get Cheryl's birthday is to steal her info, and bypass the logic and maths.



So I've heard, it took a lot of assumptions to get there.

The only assumption is that everyone is speaking the truth.

 

[shhh]

Well its simple, just eliminate out the non-unique values one by one

 

[truthseeker2010]

its more of a logic questions with lots of assumptions, than a maths question.

 

[Sliver]

@rubyjackass same way you can eliminate the dates - if it was 14th then albert would have known.. so its 16th.
heny july 16

 

[rubyjackass]

Well its simple, just eliminate out the non-unique values one by one

Well put

 

[East or West India Best]

If Cheryl is anything like us, on the internet her birthday is January 1st.

 

[Shamain]

No the answer is june 18

Ok i dont know. What the hell is u ppl's problem why u want to know a stranger woman's DOB. U stalkers.

 

[WAR-rior]

16th July it is. Typical CAT question. Solved such ones during prep days in 2008-09. Nonetheless interesting ones to brainstorm.

 

[Dubious]

Best way to get Cheryl's birthday is to steal her info, and bypass the logic and maths.



So I've heard, it took a lot of assumptions to get there.

 

[Providence]

16 July !