A factory robot recently examined some bulbs, of which 2 were flawed and 18 were not. If 30 more bulbs are examined, predict how many will be flawed.

Question

Cassius Poole

Mathematics

6 May, 13:32

A factory robot recently examined some bulbs, of which 2 were flawed and 18 were not. If 30 more bulbs are examined, predict how many will be flawed.

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Answers (1)

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Giuliana Harding · Answer 1

3 bulbs should be flawed

Step-by-step explanation:

2 + 18 = 20

20 bulbs were examined

2/20 = 1/10 were flawed

looking at the next 30 bulbs

30 * 1/10 = 3

3 of the next 30 bulbs should be flawed