Fred has 10 coins in a book bag. He has 4 quarters, 1 penny, and 5 dimes. If Fred reaches into his book bag and draws a coin without looking, what is the probability that he will draw a quarter?

A.
10%

B.
40%

C.
25%

D.
20%

Question

Fred has 10 coins in a book bag. He has 4 quarters, 1 penny, and 5 dimes. If Fred reaches into his book bag and draws a coin without looking, what is the probability that he will draw a quarter?
 
 A.
10%
 
 B.
40%
 
 C.
25%
 
 D.
20%

anonymous · Answer

B. 40%

anonymous · Answer

how

nurali · Answer

Each coin has a 1/10 probability of being drawn. There are 4 quarters, therefore the probability of drawing a quarter is
4×1/10

smored · Answer

find the proportion of quarters from total.
$$\frac{ 4 }{ 4+1+5 }=\frac{ 4 }{10 }=0.4=40percent$$

anonymous · Answer

okay... thank u.... smored can u write it a little faster

smored · Answer

sorry, takes me a bit of time for writing the equations.