Question

Danny keeps five cards with the picture of a cat and six cards with the picture of a dog on a table face down, so the pictures are hidden. He mixes up the cards then turns one card over and finds the picture of a dog on it. He removes this card from the table and turns over another card.

What is the probability that the card Danny turns over has a dog on it?
fraction 4 over 10
fraction 5 over 11
fraction 5 over 10
fraction 5 over 6

Answer 1

@Michele_Laino

Answer 2

@Michele_Laino plz help?

Answer 3

when one card with dog picture is removed,remaining cards with picture of dog=?

Answer 4

um 1 left

Answer 5

out of 6, one card is removed.

Answer 6

5

Answer 7

how many total no. of cards now ?

Answer 8

the probability is equal to the subsequent ratio:
favorable outcomes/possible outcomes

Answer 9

so the answer is 5/10

Answer 10

correct.

Answer 11

now at the second attempt we have 10 cards in total, and five of them are cards with the picture of a dog, so our probability, is:
5/10=...

Answer 12

ok i have a few more questions if that is ok it wont take long @Michele_Laino

Answer 13

i will put it in a new question

Answer 14

ok!