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A problem in mathematics is given to three students A, B, C and their respective probability of solving the problem is 1/2, 1/3 and 1/4.

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A problem in mathematics is given to three students A, B, C and their respective probability of solving the problem is 1/2, 1/3 and 1/4. Probability that the problem is solved is

(a) 3/4 

(b) 1/2

(c) 2/3 

(d) 1/3.

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Now problem will be solved if any one of them will solve the problem.

∴ P(at least one of them solve the problem)
= 1 – probability none of them can solve the problem.

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