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8 April, 22:33

A quality control inspector examined 150 light bulbs and found 8 of them to be defective. At this rate how many degective light bulbs will there be in a lot of 2000?

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  1. 8 April, 22:54
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    106

    Step-by-step explanation:

    For every 150 light bulbs, 8 are defective

    The defective rate can be written as;

    8/150

    = 4/75

    Now, to find the number of defective light bulbs in a lot of 2000, we simply multiply the defective rate by this amount

    This gives;

    4/75 * 2000

    = 106.6

    This is approximately 106 light bulbs because a light bulb is either defective or not so, we need to have a whole number.
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