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A bag contains 5 pink, 8 blue and 7 yellow balls. One ball is drawn at random from the bag. What is the probability of getting neither a blue nor a pink ball?
- (a)$\frac{1}{4}$
- (b)$\frac{7}{20}$
- (c)$\frac{2}{5}$
- (d)$\frac{13}{20}$
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(C) $\frac{7}{20}$