In a box of electric bulbs, 12% are defe...

In a box of electric bulbs, `12%` are defective. If 176 bulbs are good, how many bulbs are there in the box?

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The correct Answer is:

200

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In a box of electric bulbs, 12% are defective. If 176 bulbs are good , how many bulbs are defective?

In a box containing 15 bulbs, 5 are defective. If 5 bulbs are selected at random from the box, the probability of the event that (i) none of them is defective is 12/143 (ii) only one of them is defective is 50/143 (iii) atleast one of them is defective is 131/143

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ICSE-PERCENTAGE, PROFIT AND LOSS-REVISION EXERCISE

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