! painter "a? two b#cket?$ one containin% preci?ely one %allon of black paint and one containin% preci?ely one %allon of w"ite paint. He po#r? one pint (one&eic"t" %allon) of w"ite paint into t"e black b#cket (a??#me t"ere i? ample room) and mixe? t"oro#%"ly. He t"en po#r? one pint of t"i? mixt#re back into t"e w"ite b#cket and mixe? it t"oro#%"ly. 'ot" b#cket? now once a%ain contain preci?ely one %allon of paint. ?"e painter i? concerned wit" "ow t"e percenta%e or fractional portion of w"ite paint in t"e black b#cket compare? to t"e percenta%e or fractional portion of black paint in t"e w"ite b#cket. ?"ic" b#cket "a? t"e "i%"e?t percenta%e or ratio of minority to ma*ority paint COLOUR?