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In a box, 20 bulbs are kept and some of them are defective. 2 bulbs are selected randomly. Is the probability that both

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by M7MBA » Sun Jan 17, 2021 8:30 am

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In a box, 20 bulbs are kept and some of them are defective. 2 bulbs are selected randomly. Is the probability that both selected bulbs are defective less than 0.4?

Statement 1. More than 50% of the bulbs are defective.
Statement 2. Less than 60% of the bulbs are defective.

Answer: B

Source: e-GMAT
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Source: — Data Sufficiency |