While in
Canada, I visited a beautiful high- rise building in the Metropolitan City of
Toronto. The manager of the building told me that the building consisted of
different kinds of apartments large and small. Two room apartment were 5% in
number, 2½’s – 7% in number, 3’s – 15% in number, 3½’s – 20% in number, 4½’s –
49% in number 5’s 33% in number, 5½’s – 12% in number, 6’s – 3% in number and
in addition several 4 room apartments. Altogether the building contained 437
apartments.
Can you figure out how many apartments are there in each
type, Using round figures?
Answer: Since 437
contains the percentage of all apartments including the number of 4’s and total
of these percentage is 244, the number of 4’s must be represented by 100% as
the base. In order to find the base of 100% representing the number of 4’s we
have to divide 437 by 244% which gives us 179.0984. Thus, we can work out a table
showing the number of each type apartment which should look as follows:
Type of Apartment Number of
Apartments
Rounded out to
The
nearest figure
2
8.9549
9
2½’s
12.5369
13
3,s
26.8647
27
3½’s
35.8197 37
4,s
179.0984
179
4½’s
87.7582 88
5,s
59.1024
59
5½’s
21.4918 21
6,s
5.3729
5
Total
436.9799 437
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