The probability that a person will get an electric contract is 2/5 and the probability that he will not get plumbing contract is 4/7.If the probability of getting atleast one contract is 2/3. What is the probability that he will get both?

plz answer!

https://www.meritnation.com/ask-answer/question/an-electric-contract-is-2-5-and-the-probability-that-he/probability/3874649

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