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A piggy bank contains ₹ 1 coins and ₹ 2 coins in the ratio 9 : 11 respectively. The piggy bank is accidently dropped and a coin pops out of it. The probability that it is a ₹ 2 coin is
- (a)$\frac{9}{11}$
- (b)0.45
- (c)0.55
- (d)$\frac{1}{11}$
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(C) 0.55