For every 144 light bulbs produced, 6 are defective. Find the number of defective light bulbs that could be expected out of 720.

Question

Responses

A30 bulbs
30 bulbs
B35 bulbs
35 bulbs
C40 bulbs
40 bulbs
D45 bulbs
45 bulbs
E50 bulbs

Answer 1

To find the number of defective light bulbs, we can set up a proportion:

6 defective light bulbs / 144 produced light bulbs = x defective light bulbs / 720 produced light bulbs

Cross-multiplying, we get:

6 * 720 = 144 * x

4320 = 144x

Dividing both sides by 144:

x = 4320 / 144

x = 30

Therefore, the number of defective light bulbs that could be expected out of 720 is 30 bulbs.

The correct answer is A) 30 bulbs.