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In a factory which produces electric bulbs.1 out of every 10 bulbs is found to be defective, If the factory produces 870 bulbs per day. How many defective

bulbs are produced each day?
a)46 b) 72 c)87 d)100


Let the no' of bulbs be 10x- as given in question
total no' of bulbs=870
=> 10x=870

1 5 1
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