22. In shooting arena there are 5 different guns. Probability of hitting aim from gun1 is 0.5. Probability of hitting aim from gun2 is 0.55. Probability of hitting aim from gun3 is 0.7. Probability of hitting aim from gun4 is 0.75. Probability of hitting aim from gun5 is 0.4. One shoot was made from a gun selected at random. What is the probability that aim was hit?

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