Inflation data of a foreign country for three years are as follows:
|
Index |
Change in Index |
Annual Rate of Inflation |
|
|
January 1, 2010 |
150 |
— |
|
|
January 1, 2011 |
200 |
50 |
50 / 150 = 33% |
|
January 1, 2012 |
250 |
50 |
50 / 200 = 25% |
|
January 1, 2013 |
330 |
80 |
80 / 250 = 32% |
The cumulative three year inflation rate is:
a 45%
b 90%
c 120%
d 180%