Question

In a bag, there are 100 bulbs out of which 30 are bad ones. A bulb is taken out of the bag at random. The probability of selecting the good bulb is ______ *
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Answer 1

Answer:

Step-by-step explanation:

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Nice Question! ♥

Here is your answer :

Probability (event) = No. of favourable outcomes / Total no. of outcomes

Here,

No. of Bulbs = 100

Therefore, Total Outcomes = 100

No. of defective bulbs = 30

No. of good bulbs = Total no. of bulbs - No. of defective bulbs = 100 - 30 = 70

Hence, No. of favourable outcomes = 70

Thus,

P (taking good bulb) = 70/100 = 7/10

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Hope my answer helped... ☺