SOLUTION: A jar contains 17 one dollar bills and 8 five dollar bills. A. If you reach in and grab two bills without looking what is the probability that both are one dollar bills? B. I

Algebra.Com
Question 1178539: A jar contains 17 one dollar bills and 8 five dollar bills.
A. If you reach in and grab two bills without looking what is the probability that both are one dollar bills?
B. If your reach in and grab two bills without looking, what is the probability that you get one of each bill.
Explain your answers
Found 2 solutions by ikleyn, ewatrrr:
Answer by ikleyn(52790)   (Show Source): You can put this solution on YOUR website!
.

                    D U P L I C A T E


Just solved and answered under this link

https://www.algebra.com/algebra/homework/Probability-and-statistics/Probability-and-statistics.faq.question.1178535.html


                    E N J O Y (!)



Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!

Hi
 jar contains  25 bills: 17 one dollar bills and 8 five dollar bills
grab two bills
P(2 ones) = 17C2/25C2= 136/300 = .4533   | =  
P(I OF EACH) = (17C1)(8C1)/(25C2) = 17*8/300 = 136/300 = .4533

Had the numbers been:  25   16 one dollar bills and 9 five dollar bills:
P(20nes) = 16C2/300 = 120/300  |16C2 = 8*15
P(I OF EACH) = 16*9/300 = 144/300
IN the previous case:  numerator in both cases = 136
Wish You the Best in your Studies.


RELATED QUESTIONS

a jar contains 17 one dollar bills and 8 five dollar bills. If you reach in and grab two (answered by ewatrrr)
A jar contains 17 one dollar bills and 8 five dollar bills. A. If you reach in and... (answered by ikleyn)
Marcel has a jar filled with one and five dollar bills. The jar contains 34 bills and... (answered by Theo,Alan3354,josgarithmetic,greenestamps)
Marlisa has exactly $61 in one dollar, five dollar, and ten dollar bills. If she has 14... (answered by mananth)
An urn contains 3 one dollar bills, 1 five dollar bill and one ten dollar bill. A player... (answered by richwmiller)
You have three one dollar bills, four five dollar bills, and two $10 bills in your... (answered by Edwin McCravy)
Solve Calista has 4 one-dollar bills, 2 five-dollar bliss, and 3 ten-dollar bills in... (answered by ewatrrr)
A school cafeteria cashier has collected $243 in one-dollar, five-dollar, and ten-dollar (answered by ikleyn)
An urn contains 7 one-dollar bills, 5 five-dollar bills, and 3 ten-dollar bills. A person (answered by ewatrrr)