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 Mental Cube Root (Posted on 2004-03-10)
If the cube root of 1331 is 11 and the cube root of 1728 is 12, what is the cube root of 1442897?

(Do this one in your head - no writing or calculators allowed!)

 Submitted by Gamer Rating: 2.6667 (9 votes) Solution: (Hide) Based on the information given, we can conclude the cube root of 1331000 is 110 and the cube root of 1728000 is 120. 1442897 is between these two. Since something ending with a 3 is the only thing which gives something ending in a 7 when cubed, the answer must be 113.

 Subject Author Date Solution to the Problem K Sengupta 2007-03-09 05:13:08 No Subject paul 2004-03-25 21:48:38 re: solution Rohan Shah 2004-03-14 07:02:34 solution mark hartman 2004-03-11 18:51:05 2 EZ Ady TZIDON 2004-03-10 14:59:04 My guess Bryan 2004-03-10 14:51:20

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