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One bulb is to be selected at random from a box of 80 bulbs. Probabili
[#permalink]
11 Aug 2023, 10:50
11 Aug 2023, 10:50
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One bulb is to be selected at random from a box of 80 bulbs. Probability that the bulb selected will be defective is 5/8 , and the probability that the selected bulb will be defective and rejected is 3/16. All bulbs not rejected are sold.
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.
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Quantity A |
Quantity B |
The number of vdefective bulbs sold from the box |
35 |
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.
Post A Detailed Correct Solution For The Above Questions And Get Kudos.
Question From Our Project: Free GRE Prep Club Tests in Exchange for 20 Kudos
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Re: One bulb is to be selected at random from a box of 80 bulbs. Probabili
[#permalink]
17 Aug 2023, 04:48
17 Aug 2023, 04:48
2
Total Rejected Bulbs: 80*(5/8)=50
Total Rejected AND defective: 80*(3/16)=15
This means that out of the 50 defective bulbs, 15 are rejected and thus not sold. Therefore, 50-15=35 of the defective bulbs must not be rejected and thus sold.
QA=35=QB
C
Total Rejected AND defective: 80*(3/16)=15
This means that out of the 50 defective bulbs, 15 are rejected and thus not sold. Therefore, 50-15=35 of the defective bulbs must not be rejected and thus sold.
QA=35=QB
C
gmatclubot
Re: One bulb is to be selected at random from a box of 80 bulbs. Probabili [#permalink]
17 Aug 2023, 04:48
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