Question

A box 600 electric bulb s contains 12 defective bulbs One bulb is taken out random from this box what is probability that it is a non defective bulb?

Answer 1

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588/600

Answer 2

Total number of bulbs=600

defective bulbs =12
therefore,not-defective bulbs=600-12= 588

therefore,p( getting not defective bulbs)=588/600