Question

(1) A box of 600 electric bulbs contains 12 defective bulbs. One bulb is taken
out at random from this box. What is the probability that it is a non-defective
bulb?
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Answer 1

Answer:

The probability of non defective bulb=588/600

Answer 2

Answer:

147/150 because 12defective blubs are removed remaining are588 so we can use the formula of probability then we get 147/150