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1). \(\frac{1}{7}\)2). \(\frac{{286}}{{328}}\)3). \(\frac{{21}}{{164}}\)4). \(\frac{7}{8}\) |
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Answer» Number of not DEFECTIVE protractors = 164 - 21 = 143 Total number of protractors = 164 ∴ PROBABILITY that RUHI BUYS the protractor = $(\frac{{143}}{{164}} = \frac{{286}}{{328}})$ |
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