The probability that Alex will solve a problem is 1/5. What is the probability that he solves at least one problem out of 4 problems?	Choose the correct choice from the following:
A) 64/125  B) 256/625  C) 64/625  D) 369/625  E) 359/625
The probability that Alex will not solve a problem = 4/5. The probability that Alex will not solve 10 problems = (4/5)4 = 256/625.   Hence, the probability that Alex will solve at least one problem   = 1 - 256/625 = 369/625.   ANSWER:369/625
<result>D</result>
The probability that Alex will solve a problem is 1/5. What is the probability that he solves at least one problem out of 4 problems?