Karim, Rahim, Ram & Shyam have the following probabilities of passing the admission test 20%, 30%, 25% and 50% respectively. ...

Answer: 
3%
Karim, Rahim, Ram & Shyam have the following probabilities of passing the admission test 20%, 30%, 25% and 50% respectively. What is the probability of Karim, Rahim and Shyam will pass the test?