Problema Solution
It takes an insect 15s to crawl 1ft. How many hours would it take the insect to crawl 1mi if the insect crawls at the same rate?
Answer provided by our tutors
1 mi = 5280 ft
1 ft = 1/5280 mi
1 hr = 3600 s
1 s = 1/3600 hr
15 s = 15/3600 hr
15 s = 1/240 hr
The insects rate is
v = (1/5280)/(1/240)
v = 1/22 mph
We need to find t for d = 1 mi.
Since v = d/t follows t = d/v that is:
t = 1/(1/22)
t = 22 hr
The insect will need 22 hours to crawl a distance of 1 mile.