It is know that a box of 800 electric bulbs contain
180 defective bulbs. If one bulb is taken random from
this box, then what is probablity
that is non defective
bulb?
Answers
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2
Answer:
31/40
Step-by-step explanation:
non defective = 800 - 180 = 620
probability of getting non defective bulb
= 620/800 = 62/80 = 31/40
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