Math, asked by prakashkathare74, 10 months ago

21. A box contains 28 bulbs of which 7 bulbs are defective, a bulb is drawn
randomly from the box. Find the probability of picking a non-defective
bulb.

Answers

Answered by smithabiju34

Answer:

21/28 is the required probability

Answered by marishthangaraj

The probability of picking a non-defective bulb is 0.75.

Step-by-step explanation:

Given:

Total number of bulbs in the box = 28

Number of Defective bulb = 7

To Find:

The probability of picking a non-defective bulb = ?

Solution:

The probability of pic the bulb that is non defective is

=(Number of non defective bulbs) / (number of bulbs)

The number of bulbs that is non defective = Total number of bulb - defective bulb

The number of bulbs that is non defective = 28 -7 = 21

Thus the probability = $\frac{21}{28}$ = 0.75

Learn more about Probability:

It is known that a box of 600 electric bulbs contain 12 defective bulbs is taken at random from this bulb is taken at random from this box. what is the probability that is a non defective bulb

https://brainly.in/question/2443338

Out of 50 bulbs in a box 10 are defective. one bulb is taken out at random from the box. what is the probability that the bulb drawn is not defective ?

https://brainly.in/question/2464711

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