2₁/In one of engineering Colleges, it was found that 25% of the students failed in the subject of engineering statistics, and it was also found that 15% of the students failed in the subject of Mathematics, and 10% failed in the two Subjects together. if the students were chosen randomly Find:- 1. The probability that he is failed in mathematics, if he was failed in stat. eng. 2. The probability that he is failed in statistical engineering if he was failed in math. 3. The probability that he will failed in both Subjects.

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