Question

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

Answer 1

144*5=720

therefore

6*5=30

therefore in the production of 720 bulbs 30 are expected to be defective

Answer 2

144 --> 6

144×5 = 720. that means 6×5 = 30 bulbs are to be expected defective