2006-10-07 15:59:20 · 18 answers · asked by nicky 2 in Science & Mathematics ➔ Mathematics
4 years he was born on Friday 1 Oct 1976
1 year =365 days = 52 weeks + 1 day
1 lunar year=366 days = 52 weeks + 2 days
if we count back from wed 1 october 19980
from 1 oct 1979 to 1 oct 1980 is passthrough Feb 1980 (lunar year)
52 week + 2 days
so the day need to step backs 2 days so became Monday 1 Oct 1979
from 1 oct 1978 to 1 oct 1979
52 week + 1 days
so the day need to step backs 1 days so became SUNDAY
Sunday 1 Oct 1979
from 1 oct 1977 to 1 oct 1978
52 week + 1 days
so the day need to step backs 1 days so became SATURDAY
Saturday 1 Oct 1977
from 1 oct 1976 to 1 oct 1977
52 week + 1 days
so the day need to step backs 1 days so became FRIDAY
friday 1 Oct 1976
2006-10-07 18:39:36 · answer #1 · answered by safrodin 3 · 1⤊ 0⤋
The child will be 5 years old on wednesday 1st october 1980. He was born on friday 1st october 1975.
2006-10-07 17:33:53 · answer #2 · answered by Meera 3 · 0⤊ 0⤋
5
2006-10-07 16:47:54 · answer #3 · answered by ad2006miral 3 · 0⤊ 0⤋
4
2006-10-07 16:09:37 · answer #4 · answered by Nikitty 2 · 1⤊ 0⤋
Child must bhave born on 1st October 1976 because 1980 is a leap year so it will be wednesday on 1/10/1980 instead of tuesday.
Or
child should be half of your age because you seems to be full mad!
2006-10-07 19:02:33 · answer #5 · answered by Anonymous · 0⤊ 0⤋
four year 4; if october 1 was wedneday in 1980, then 1976 october 1 has to be a friday
2006-10-07 16:31:23 · answer #6 · answered by django_of_djangos 1 · 0⤊ 0⤋
365mod7 = 1
366mod7 = 2
1 Oct 1980 = Wed
1 Oct 1979 = Mon
1 Oct 1978 = Sun
1 Oct 1977 = Sat
1 Oct 1976 = Fri
1980-1976 = 4 years
2006-10-07 16:29:12 · answer #7 · answered by Helmut 7 · 0⤊ 0⤋
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2016-12-04 09:36:54 · answer #8 · answered by snelling 4 · 0⤊ 0⤋
He was 6 years old!
2006-10-07 16:12:17 · answer #9 · answered by ? 6 · 0⤊ 1⤋
If born in 1900 the person would be 80 years old.
for each year later the person is born subtract one year of age.
If born in
1901.....79
1902.....78
1903.....77
1904.....76
1905.....75
for each 5 year period
1900.....80
1905.....75
1910.....70
1920.....65
1925.....60
going by a ten year time frame...
1900.....80
1910.....70
1920.....60
1930.....50
1940.....40
1950.....30
1960.....20
1970.....10
1980......birth
2006-10-07 16:24:28 · answer #10 · answered by mommakaye 5 · 0⤊ 0⤋