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An exam consists of 3 problems selected ...

An exam consists of 3 problems selected randomly from a collection of 10 problems. For a student to pass, he needs to solve correctly at least two of three problems. If the student knows to solve exactly 5 problems, then the probability that the students pass the exam is

A

`(1)/(2)`

B

`(1)/(3)`

C

`(3)/(4)`

D

`(5)/(6)`

Text Solution

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The correct Answer is:
A
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