DNA is approximately 2.5nm in length. IF an average man is 5ft 10 in. tall, how many DNA molecules could be stacked to extend from the ground to the top of the head of an average man.

Answer 1

I would convert 5 ft to nm, convert 10 inches to nm, add them to find the total.
Then total nm/2.5 = DNA molecules.

Answer 2

No no no! The one above is not correct.