Question 1154183
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P(at least one solves the problem)<br>
= 1 - P(none of them solves the problem)<br>
= 1 - (1-(4/5))*(1-(2/3))*(1-(3/4))<br>
= 1 - (1/5)(1/3)(1/4)<br>
= 1 - 1/60<br>
= 59/60<br>