Question

The probability that A, B, C solve a problem is ½, 2/3 and ¾. The probability that the problem will be solved is

• A. 1/24
• B. 23/24
• C. 7/12
• D. 5/12

Answer 1

Answer: (B)

23/24

Answer 2

Required probability = 1 – problem will not be solved.

= 1 – P( $\overline { \mathrm { A } } \cap \overline { \mathrm { B } } \cap \overline { \mathrm { C } } )$

= 1-