In a bag there are hundred bulbs out of which 30 are defective ones. A bulb is taken out of the bag at random. Find the probability of the selected bulbs to be a good one.
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since there are total bulb hundred but 30 bulbs are defective so the good bulbs are 100 - 30 equal to 70 bulb show the probability of a good one is 70 by 100 so the answer will 0.7
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Answer:
Total number of bulbs = 100
Defective bulbs = 30
Good bulbs = 100-30
= 70
Probability = 70/100
= 0.7
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