In a box there are 10 non-defective bulbs and some defective bulbs. If the probability that a bulb selected at random from the box to be defective is 2/7, then find the defective bulbs
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In a box there are 10 non-defective and some defective bulbs. If the
probability that abulb selected at random from the box to be defective is
2/7,the find the number of defective bulbs.
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0
Answer:
There are 4 defective bulbs
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