A) 140
B) 145
C) 50
D) 100
Correct Answer: B
Solution :
Let the number of defective bulbs = x Probability of getting a defective bulb \[=\frac{x}{500}\] According to question, \[\frac{x}{500}=0.290\] \[\Rightarrow \,\,x=0.290\times 500=145\]You need to login to perform this action.
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