wu :: forums - Print Page


    
      
        wu :: forums
        (http://www.ocf.berkeley.edu/~wwu/cgi-bin/yabb/YaBB.cgi)
      

        riddles >> easy >> MC Kilometer riddle
        
(Message started by: Ela on Nov 12^th, 2012, 3:23am)

Title: MC Kilometer riddle
Post by Ela on Nov 12^th, 2012, 3:23am

A driver is riding his MC in a fixed speed from point A to B.
in some point, he noticed that the numbers of km he already
passed, equals to the number of minutes he got left to drive
until he reaches the B point. When he finally reached point B,
he then find out that the number of kilometers is equal to the
sum of the minutes he drove in the first part of his trail.

Q:what was his speed from point A to point B?

Title: Re: MC Kilometer riddle
Post by towr on Nov 12^th, 2012, 11:48am

Is the last part, that the whole distance from A to B (in km) equals the sum of the digits(?) of the time he took for the first part (in minutes)?

Title: Re: MC Kilometer riddle
Post by Ela on Nov 13^th, 2012, 3:47am

I mean the time for the first part in minutes,

[hide]if every minute he will pass is 1 km, after half an hour
he'll be half way from his goal. the sum is 30 in this case: midA/B30km + 30minutes = fixed speed 60km/h[/hide]
Apology if i wasn't clear.

here

Title: Re: MC Kilometer riddle
Post by goodRiddler on Nov 17^th, 2013, 5:56pm

His speed was equal to the number of kilometers between A and B.

More of a mth problem then a riddle