I want to by a book clip/light thing that claims the LED light lasts "100,000 hours". I suck at doing math in my head, so how many months/years would 100,000 hours equal to?
2007-09-27 18:10:59 · 11 answers · asked by ♥Kay 4 in Science & Mathematics ➔ Mathematics
Ok, so 11.4 - 11.5 years seems to be the general consensus. Thank you all for your help and for answering so quickly!
2007-09-27 18:51:37 · update #1
About 11.4 15524 years if on continuously. IF it could possibly last that long. I made a stupid error the first time. That goes to show me how the thought process is clouded when the body & brain are deprived of sleep.
2007-09-27 18:15:20 · answer #1 · answered by shawnster172 2 · 2⤊ 0⤋
Well 1 day = 24 hours
100,000/24 = 4167
that makes it 4167 days
about 30 days a month
4167/30 = 139 months
12 months in a year
139/12 = 11.5 years
so that should mean 100,000 hours is approximately 11.5 years
I hope that helps=]
2007-09-27 18:18:04 · answer #2 · answered by marikrismas 3 · 2⤊ 0⤋
24 hours in a day
April, June, September, November have 30 days
February has 28 or 29 days
all other months have 31 days
typically 365 days in a year (or 366 days in a leap year (every 4 years, except years divisible by 100))
Assuming that you left the LED on for 24 hours a day/7 days a week:
100000 hours / 24 hours/day = 4166.666666666...... days
99984 hours / 24 hours/day = 4166 days
100000 hours = 4166 days and 16 hours
now, we figure on how many years that'll be. given that a year is at least 365 days, 4166 days is more than 10 years, so you'll hit at least one leap year in there...
4166 days / 365 days/year ~= 11.41 years
365*10 + 366 = 4016 days (10 regular years and one leap year)
4166 days = 10 regular years, one leap year, 50 days
50 days is about 1 + 2/3 months.
So, 100,000 hours is roughly just under 11 years, 2 months.
2007-09-27 18:38:42 · answer #3 · answered by mrvadeboncoeur 7 · 1⤊ 1⤋
24 hours in the day
161 hours in a week
8760 hours in a year
So 100,000 hours = 11.4 years
2007-09-27 18:31:16 · answer #4 · answered by Beardo 7 · 2⤊ 0⤋
11 years!
2007-09-27 18:14:50 · answer #5 · answered by Anonymous · 1⤊ 1⤋
100,000 / 24 = 4,166.66667 days
365 x 24 = 8,760 days in year
11.4155251 x 12 = 136.986301 months
100,000 / 8760 = 11.4155251 years
2007-09-27 18:23:47 · answer #6 · answered by Christine P 5 · 2⤊ 0⤋
100,000 hours = 11.4 years
100,000 hours/24 hours per day = 4166.67 days
4166.67 days/365.25 days per year = 11.4077 years
(the 365.25 counts for the leap year every 4 years).
2007-09-27 18:16:12 · answer #7 · answered by Dan S 7 · 2⤊ 0⤋
Unless it's to late for me to think:
4166.67 Days
595.54 Weeks
137.04 Months
11.42 Years
2007-09-27 18:18:45 · answer #8 · answered by Rev Sly 1 · 2⤊ 0⤋
100,000 hr
divde by 24,
4167 days
11yrs and abt 5 months?
2007-09-27 18:17:42 · answer #9 · answered by Anonymous · 2⤊ 0⤋
It should run for about 11.4155251 years.
2007-09-27 18:17:54 · answer #10 · answered by Anonymous · 2⤊ 0⤋