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1) A box has 79 balls, out of which 14 balls are black coloured and the remaining balls are white in colour.
i) Number of white balls in the box =
ii) What fraction of the balls are white in colour? / 79
iii) What fraction of the balls are black in colour? / 79
2) If 3 black balls are taken out of the box, what will be the fraction of black balls present?