AIEEE Exam

If four whole numbers taken at random are multiplied together, then the
chance that the last digit in the product is 1 or 3 or 7 or 9 is

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AIEEE Other Question

A problem in EAMCET examination is given to 3 students A, B and C
whose chances of solving it are ½, 1/3 and 1/4 respectively. The probability that the problem will be solved if both of them try the problem is Two persons A, B in order cut a pack of cards replacing them after each cut. The person who first cuts a club shall win a prize. The probabilities of their winning are