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Math Riddle : Tennis Ball Balance by frankg1(m): 9:02am On Apr 23, 2016 |
7 tennis balls are identical in every way,
except that one of them weighs slightly less
than the other 6. How can you identify the
lightweight ball with no more than two
separate weighings using a balance scale? |
Re: Math Riddle : Tennis Ball Balance by BETATRON(m): 10:42am On Apr 23, 2016 |
frankg1:place 3 balls each on each sides of the balance scale ...if the balance scale is in equilibrium then uve gotten the odd ball But if this is not the case I.e the weighing balance tilts then the lighter should be on the side that tilts upwards...now you take ur second weighing placing one ball each (from the 3 lyter part) on the weighing scale..again if the scale is in equilibrium den the 3rd ball is your lighter ball but if it is not then the side that tilts upwards is ur lighter ball.. |
Re: Math Riddle : Tennis Ball Balance by frankg1(m): 11:44am On Apr 23, 2016 |
BETATRON: Nice one |
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