A bag contains a total of 20 batteries, of which six are defective. Selecting two at random, without replacement, determine the probability that none of the batteries you select are good.
3/5
3/10
3/38
9/100

Question

A bag contains a total of 20 batteries, of which six are defective.  Selecting two at random, without replacement, determine the probability that none of the batteries you select are good.
      3/5
      3/10
      3/38
      9/100

anonymous · Answer

$$\frac{14}{20}\times \frac{13}{19}$$

smurfy14 · Answer

6/20 times 5/19

anonymous · Answer

i get 
$$\frac{91}{190}$$

smurfy14 · Answer

which equals 30/380..now reduce

anonymous · Answer

thats what i got satellite

anonymous · Answer

oh i am wrong. i thought it said "none are defective" it says "none are good"
smurfy is right

smurfy14 · Answer

it simplifies to 3/38 so it is the third one

anonymous · Answer

i wonder why it does not say "both are defective" to make life easier

anonymous · Answer

lol cuz this class sucks... lmao