Answer :

__Given Data__:

• Probability that A solves the problem

• Probability that B solves the problem

• Probability that C solves the problem

• Probability that D solves the problem

__Calculation__:

Say P(E) is probability that problem is solved

Probability that problem is not solved by anyone of A, B, C and D

Therefore

Probability that problem is solved is

At most one of them solves the problem means that we have to consider two cases

• when no one solves the problem

• when either one of them solves the problem

Therefore desired probability

Rate this question :

A bag contains 6 RD Sharma - Volume 2

A man is known toMathematics - Board Papers

A bag contaRD Sharma - Volume 2

Three persons A, Mathematics - Board Papers

Bag I contains 3 Mathematics - Board Papers

A speaks trRD Sharma - Volume 2

Two cards aRD Sharma - Volume 2

A bag contaRD Sharma - Volume 2

Kamal and MRD Sharma - Volume 2

Two balls aRD Sharma - Volume 2