# A question of probability

**Discrete Mathematics**Level pending

**a** , only E2 occurs is **b** and only E3 occurs is **c** . Let the probability **p** that none of events E1, E2 or E3 occurs satisfy the equations
**(a - 2b) p = ab and (b - 3c) p = 2bc**. All the given probabilities are assumed to lie in the interval (0, 1).

Then,
Probability of occurrence of E1 )/(Probability of occurrence of E3) = ?

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