I need the answer ASAP so could someone lend some help,,i need it for our quiz on Tuesday July 21,08...

Q1:

A factory produces fuses, which are packaged in boxes of 10. Three are fuses selected at random from each box for inspection. The box is rejected if at least one of these three fuses is defective. What is the probability that a box containing five defective fuses will be rejected..

Q2:

An urn contains 24 chips,numbered 1 to 24. One is drawn at random. Let A be the event that the number is divisible by 2 and let B be the event that the number is divisible by 3. Find P(AUB).

Q3:

In a certain manufacturing process the probability of a type I defect is 0.12 the probability of a type II defect is 0.22 and the probability of having both types of defects is 0.02. Find the probability of having neither type of defect.

// please i need some help// This is the key for my graduation..