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Senior Manager  P
Joined: 31 Aug 2016
Posts: 266
Location: India
Concentration: Operations, Finance
GMAT 1: 680 Q49 V33 GMAT 2: 700 Q49 V37 GPA: 2.81
A pocket contains pennies and dimes only, in the ratio 4:1, respective  [#permalink]

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Difficulty:   5% (low)

Question Stats: 90% (00:30) correct 10% (00:53) wrong based on 31 sessions

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A pocket contains pennies and dimes only, in the ratio 4:1, respectively. If a coin is randomly selected from the pocket, what is the probability that it is a dime?

a. $$\frac{1}{8}$$
b. $$\frac{1}{5}$$
c. $$\frac{1}{4}$$
d. $$\frac{1}{2}$$
e. $$\frac{4}{1}$$

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Manager  S
Joined: 16 Oct 2011
Posts: 82
GMAT 1: 620 Q37 V38 GMAT 2: 640 Q36 V41 GMAT 3: 650 Q42 V38 GMAT 4: 650 Q44 V36 GMAT 5: 570 Q31 V38 Re: A pocket contains pennies and dimes only, in the ratio 4:1, respective  [#permalink]

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PeepalTree wrote:
A pocket contains pennies and dimes only, in the ratio 4:1, respectively. If a coin is randomly selected from the pocket, what is the probability that it is a dime?

a. $$\frac{1}{8}$$
b. $$\frac{1}{5}$$
c. $$\frac{1}{4}$$
d. $$\frac{1}{2}$$
e. $$\frac{4}{1}$$

Let the number of pennies = 4 and the number of dimes =1. Then the total coins is 5 and the probability of drawing a dime is 1/5. The answer is B
Intern  B
Joined: 28 Jan 2019
Posts: 7
Re: A pocket contains pennies and dimes only, in the ratio 4:1, respective  [#permalink]

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4 pennies and 1 dime.4+1=5coins
1/5
Ans B

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Target Test Prep Representative P
Status: Founder & CEO
Affiliations: Target Test Prep
Joined: 14 Oct 2015
Posts: 5375
Location: United States (CA)
Re: A pocket contains pennies and dimes only, in the ratio 4:1, respective  [#permalink]

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1
PeepalTree wrote:
A pocket contains pennies and dimes only, in the ratio 4:1, respectively. If a coin is randomly selected from the pocket, what is the probability that it is a dime?

a. $$\frac{1}{8}$$
b. $$\frac{1}{5}$$
c. $$\frac{1}{4}$$
d. $$\frac{1}{2}$$
e. $$\frac{4}{1}$$

Since the ratio of pennies to dimes is 4 : 1, the simplest case would be that there are 4 pennies and 1 dime. The probability of selecting a dime is 1/(1 + 4) = 1/5.

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# Scott Woodbury-Stewart

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See why Target Test Prep is the top rated GMAT quant course on GMAT Club. Read Our Reviews Re: A pocket contains pennies and dimes only, in the ratio 4:1, respective   [#permalink] 15 Feb 2019, 18:44
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# A pocket contains pennies and dimes only, in the ratio 4:1, respective

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