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. When the last 3 digits of a year (such as 1987) are consecutive digits written in descending order, we’ll call the
Question
. When the last 3 digits of a year (such as
1987) are consecutive digits written in
descending order, we’ll call the year a
descending year. A descending year will
next occur in the
(A) 23rd century
(B) 24th century
(C) 25th century
(D) 26th century
Plz help
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Mathematics
4 years
2021-09-05T08:35:48+00:00
2021-09-05T08:35:48+00:00 1 Answers
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Answers ( )
Answer:
A ; 23rd century
Step-by-step explanation:
Here, we want to select which of the options is next to have a descending year.
Since all are in the same century i.e 20-something, we do not have an issue with the first digit.
What we need to work on is the last three digits;
We can have 2210, we can have 2321, we can have 2432, we can also have 2543 and so on.
The most recent of all these is the year 2210, so what century does this belong?
Kindly note that, the years 2001-2100 belong to the 21st century.
The years 2101-2200 belong to the 22nd century while the years 2201-2300 belong to the 23rd century
The year we are looking to place is the year 2201 and thus belongs to between 2201-2300 which is the 23rd century