A lightbulb manufacturer found the three out of every 260 lightbulbs in every batch were bad if they produce 22,150 lightbulbs, how many are bad
To find out how many bad lightbulbs there are in a batch of 22,150, we first need to find out how many batches there are. This can be done by dividing the total number of lightbulbs by the number of lightbulbs in each batch:
22,150 / 260 = 85
So there are 85 batches of lightbulbs. Since 3 out of every 260 lightbulbs are bad, we can find out how many bad lightbulbs there are in total by multiplying the number of batches by the proportion of bad lightbulbs in each batch:
85 * (3/260) = 0.9846
Rounded to the nearest whole number, there are approximately 1 bad lightbulb in every batch. Therefore, in a batch of 22,150 lightbulbs, there are approximately 85 bad lightbulbs.