IBPS SO Prelims Exam Model Paper 4

Given
Chances of Anil, Kamal and Sujata solve the question is

1

6

,

2

3

and

1

4

Calculation
Event of solving the question by Anil, Kamal and Sujata is independent
The question will be solved if at least one of the three will solve the question
Required probability = 1 – [1 – (

1

6

)][1 – (

2

3

)][1 – (

1

4

)]
⇒ 1 – (

5

24

)
⇒

19

24