Question

10 defective rings are accidentally mixed with 100 good ones in a lot. It is not possible to just look at a ring and tell whether or not it is defective one ring is drawn at random from this lot. What is the probability of this ring to be a good one.

Answer 1

Answer:

1\10

Step-by-step explanation:

formula of probality = favourable outcomes \total outcomes

defective rings\ good ones

10\100

1\10