A box contains 25 bulbs and 125 tubelights. On checking the box, it was found that half of the bulbs and tubelights are defective. If one item is chosen at random, find the probability that it is defective.150/200 1/2 100/150
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total number of bulb and tubelight is 150
defective pieces are 150 ÷ 2 = 75
P(e) = 75 ÷ 150 = 1/2
1/2 is your final answer
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