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A bag contains some red and some white balls. A ball is drawn at random from the bag. If the probability of getting a red ball is $\frac{2}{7}$, then the probability of getting a white ball is
- (a)$\frac{1}{14}$
- (b)$\frac{5}{7}$
- (c)$\frac{1}{7}$
- (d)$\frac{2}{7}$
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Answer (B) $\frac{5}{7}$