Question

Adam has 4 dimes, 4 quarters and 4 nickels in his pocket. He pulls out 2 coins making sure to put the first one back in his pocket before picking the second. What are the odds that he pulls out 2 nickels?

Answer 1

Remember what we did for the last problem

Answer 2

yess can u help me please?

Answer 3

Ofcourse

Answer 4

Here is a formula for you: Odds = (Dimes + Nickels + Quaters) Divided By: Number of coins pulled out.

Answer 5

so itll be 4+4+4+2+2=16/by 5=4?

Answer 6

Sorry the divide part is actually before (Dimes....)

Answer 7

haha

Answer 8

No add the totoal amount of coins, What is that equal to?

Answer 9

*total

Answer 10

16

Answer 11

Correct

Answer 12

:)

Answer 13

Now odds is always like this X out of Y == X/y which means if there is a 1 out of 3 then its 1/3. Try to use this logic to help you get your answer

Answer 14

ok so itll be 1/3?

Answer 15

Not for this problem. remember that was an example.

Answer 16

oh cause they have that answer? i was just wondering!

Answer 17

oh lol no. Plug in the numbers from your problem with my example. Number out of Number = Number/Out of Total Amount.

Answer 18

i got 1/9

Answer 19

Ok lets try it like this . How many coins pulled out at a time?

Answer 20

he pulled out 2

Answer 21

ok so we have number pulled out equals 2. Now we need the total amount of coins that are inside his pocket. What is that?

Answer 22

he has 16

Answer 23

ok so your anwer will be Number pulled out / Total Inside pocket. So what is your answer?

Answer 24

1/16?

Answer 25

How many does he pull out at a time?

Answer 26

2

Answer 27

Ok so its not 1/16 but ?/16

Answer 28

What is missing?

Answer 29

thats the only answer with a 16 in itt

Answer 30

Right but answer mine we are getting there

Answer 31

2/16

Answer 32

Correct. But they said that he puts one back after he pulls 2. So that means 2-1/16 which is 1/16. Understand?

Answer 33

kinda

Answer 34

He pulls out 2 then puts one back so it is 1/16 instead of 2/16.

Answer 35

ohh!

Answer 36

Now you get it?

Answer 37

yess! so is that the answer?

Answer 38

yes

Answer 39

actually wait no

Answer 40

huh?

Answer 41

Sorry the total number of coins is 12 not 16. I added an extra 4. So sorry. Its 1/12 or 2/12. Do you have any of those answers?

Answer 42

no but i have 1/16

Answer 43

do you have 1/6?

Answer 44

no i have 1/3,1/16,1/9,1/81

Answer 45

1/3 is your answer

Answer 46

1/3, then 2/6, then 4/12

Answer 47

4 out of 12 chance and if you simplify its 1/3 or 4 Divided by 4 / 12 divided by 4. Get it

Answer 48

yess

Answer 49

Ok sorry about the confusion earlier.

Answer 50

There you go I gave you a medal