Brain Teasers
Aardvark to Beeville
A man drove from Aardvark to Beeville. On the first day he travelled 1/3 of the distance. On day two he travelled 1/2 of the remaining distance. On day three he travelled 2/3 of the remaining distance. On day four, after covering 3/4 of the remaining distance, he was still 5 miles away from Beeville. How many miles had he covered so far?
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I come up with 180 several times. Could you or anyone show me where this answer comes from?
The total distance is 180 miles. So he has travelled 175 miles so far.
Oops, forgot the last 5 miles in the puzzle. My bad.
What is he driving? A horse and buggy?
Yay I got it! 
Pretty simple in my head. 2/3 x 1/2 x 1/3 x 1/4 = 1/36. So 5 is 1/36 and traveled distance is 5x35=175.
You see kiddies, from Java's answer, that because the numerical fact given is 5 km remainin,g that the easy way to do it is to work on the fraction REMAINING rather rather than the fraction travelled. Voila! 
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