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MathematicsMathematics
7 August, 04:11

By accident, 6 burned out bulbs have additionally been mixed in with 26 good ones. Ken is replacing

old bulbs in his house. If he selects two bulbs at random from the box of 32, what is the probability

they both work?

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Answers (1)
  1. 7 August, 06:29
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    66%

    Step-by-step explanation:

    first find the probability of finding 1 good lightbulb so that 26/32. next if you happen to find a good lightbulb there is only 31 left if in that exact order so it goes down to 25/31 to find the second bulb. finally you multiply both probabilities, divide the numerator by the denominator to get your percentage in decimal form.
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Home » Mathematics » By accident, 6 burned out bulbs have additionally been mixed in with 26 good ones. Ken is replacing old bulbs in his house. If he selects two bulbs at random from the box of 32, what is the probability they both work?
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