Question

The probability that A, B and C can solve a problem are 1, 2 and respectively.
The probability of the problem being solved by A and B is , B and C is ?,
A and C is 2. The probability of the problem being solved by all the three is
8/35​

Answer 1

Hey there !!

Here we have

We know that , Probability of not happening of an event , P ( Not ) = 1 - P ( E)

Now , proceeding with this we get

Hence The probability P ( Not solving by A , B , C ) = 1 /2 , 2/3 , 3/ 4

Hope this would help you !!