If you divide a cake in to 9pieces and remove 3pieces,how much of the cake remains
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let x be the cake
if it is divided into 9 pieces then one piece =x/9
three such pieces = 3*x/9=3x/9
if such 3 pieces are removed from the cake then
= x - 3x/9
=9x-3x/9
=6x/9
=2x/3
=2/3 of x
=2/3 of cake remains
if it is divided into 9 pieces then one piece =x/9
three such pieces = 3*x/9=3x/9
if such 3 pieces are removed from the cake then
= x - 3x/9
=9x-3x/9
=6x/9
=2x/3
=2/3 of x
=2/3 of cake remains
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