10^4 - 10^2 = 99x100 = (100-1)X100 X (.OO12BAR)
= (100-1)X (.12BAR)
= 12BAR - .12BAR
12BAR = 12.1212121212.....
Therefore 12BAR - .12BAR = 12
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test38 #12
Source: Beat The GMAT — Problem Solving |
10^4 - 10^2 (.0012)
{10^2 [10^2 - 1]} (.0012)
{10^2 [99]} (.0012)
[.12BAR *99]
= (100-1) (.12 BAR)
= 12.12Bar - .12Bar
=12
{10^2 [10^2 - 1]} (.0012)
{10^2 [99]} (.0012)
[.12BAR *99]
= (100-1) (.12 BAR)
= 12.12Bar - .12Bar
=12
