Correct!
The correct answer is G. 1/40 of 1,000 light bulbs were defective,
so 1/40 (1,000) or 25 bulbs were defective.
The rest, 1,000 – 25 or 975, were nondefective.
The ratio of defective to nondefective is 25/975= 1/39
F. If the ratio of defective bulbs to nondefective bulbs were 1/25,
then out of every 26 bulbs, 1 would be defective, so 1/26 of the bulbs would be defective.
But the fraction of defective bulbs is 1/40.
H. If the ratio of defective bulbs to nondefective bulbs were 1/40,
then out of every 41 bulbs, 1 would bedefective, so 1/41 of the bulbs would be defective.
But the fraction of defective bulbs is 1/40
J. If the ratio of defective bulbs to nondefective bulbs were 39/1,
then out of every 40 bulbs, 39 would bedefective, so 39/40of the bulbs would be defective.
But the fraction of defective bulbs is 1/40
K. If the ratio of defective bulbs to nondefective bulbs were 40/1,
then out of every 41 bulbs, 40 would be defective, so 40/41of the bulbs would be defective.
But the fraction of defective bulbs is 1/40