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There are exactly 13 coins in a bag: 4 pennies, 2 nickels, 3
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22 Oct 2020, 07:28
22 Oct 2020, 07:28
Expert Reply
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Question Stats:
96% (00:33) correct
3% (00:31) wrong based on 52 sessions
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There are exactly 13 coins in a bag: 4 pennies, 2 nickels, 3 dimes, and the rest are quarters. One coin is selected at random from the bag.
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
Source: 320 GRE Math Questions
Quantity A |
Quantity B |
A: The probability that the selected coin is a quarter |
A: The probability that the selected coin is a penny |
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
Source: 320 GRE Math Questions
Re: There are exactly 13 coins in a bag: 4 pennies, 2 nickels, 3
[#permalink]
22 Oct 2020, 14:49
22 Oct 2020, 14:49
2
Carcass wrote:
There are exactly 13 coins in a bag: 4 pennies, 2 nickels, 3 dimes, and the rest are quarters. One coin is selected at random from the bag.
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
Source: 320 GRE Math Questions
Quantity A |
Quantity B |
A: The probability that the selected coin is a quarter |
A: The probability that the selected coin is a penny |
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
Source: 320 GRE Math Questions
First, discover the number of quarteres. There are 13-4-2-3=4 quarters.
A = Probability of selecting a quarter = 4/13.
B = Probability of selecting a penny = 4/13
A=B so answer is C.
Re: There are exactly 13 coins in a bag: 4 pennies, 2 nickels, 3
[#permalink]
26 Oct 2020, 02:47
26 Oct 2020, 02:47
1
Since the number of pennies and quarters are the same (4 each) the probability of choosing either from the bag of coins is also the same. So we choose C.
