anuragh....

assume each can shoot the target everytime...
P(A) = 1
P(B) = 1
P(C) = 1

per your logic, the probability that the target will be hit is 3....
actually, it should have only been 2 as we're going to pick only 2
people out of 3 to shoot...

I think you should factor in the probability that A or B or C will be
picked...
There are 3C2 ways to pick 2 cards out of 3... Since its purely
random, each card has 2/3rd chance that it's picked...

so if you factor in the probability, the answer is

required probablilty = P(A) * 2/3  + P(B) * 2/3 + P(C) * 2/3

On Jan 11, 12:06 pm, "anurag.singh" <anurag.x.si...@gmail.com> wrote:
> For 2nd question (probability): Looks like one data is missing for C.
> If I assume C can shoot 8 out of 10. times then:
>
> P(A) = 4/5
> P(B)=6/7
> P(C)=8/10
>
> Required Probability should be = P(A) * P(B) + P(B) * P(C) + P(A) *
> P(C)
>
> On Jan 11, 9:58 pm, snehal jain <learner....@gmail.com> wrote:
>
> > 1. what is valid in cpp
> > char *cp;
> > const char* cpp;
> > 1. cpp=cp 2. cp=cpp
>
> > 2 there r 3 ppl A B C
> > A can shoot the target 4 out of 5 times B can shoot 6 out of 7 times
> > and C can shoot 8 out of  times. 2 people r selected at random. then
> > wat is the probability of hitting the target?

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