1.

A number x is selected at random from the set {1,2,3,..............99). A number y is selected from the same set.The probability that the number: 7X+5Y last digit is 8.

Answer»

A number x is selected at random from the set {1,2,3,..............99). A number y is selected from the same set.The probability that the number: 7X+5Y last digit is 8.




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