Question

A bag contains 25 marbles: 10 black, 13 red, and 2 blue. A marble is drawn from the bag at random. What is the probability of getting a red or a blue marble?

Answer 1

how many marbles are either red or blue? what fraction of the total number of marbles is that?

Answer 2

There are 13 red and 2 blue. which is 15/25?

Answer 3

or if reduced, that is...

Answer 4

Do you think you could help me out with one more? :)

and thats 3/5

Answer 5

If you could its:

A card is drawn from a deck of 52. Find the probability of drawing a red card (hearts or diamonds) or a face card (jack, queen, or king).

Answer 6

I thought it was 6/13 but thats not right.

Answer 7

I understand if you cant but its my last one i have left :) would really appreciate it

Answer 8

well, how many red cards are there?

how many face cards are there that aren't red? You don't want to count a card twice...

Answer 9

I searched that and it said that there are 13 red cards

Answer 10

an ordinary deck of cards has 4 suits of 13 cards each. There are 2 red suits (hearts, diamonds) and 2 black suits (clubs, spades). How many red cards are there?

Answer 11

each suit has cards A, 2, 3, 4, 5, 6, 7, 8, 9, 10, J, Q, K with J, Q, K counted as face cards.

that means there are 26 red cards, plus an additional 2*3 = 6 more face cards which are not red. Our probability of drawing a red card or a face card is therefore (26+6)/52

Answer 12

SOrry for late reply it froze. Okay 26 + 6 is 32/52

Answer 13

Which is 8/13

Answer 14

Thanks! :)

Answer 15

you're welcome.