Concept: The question tests on the application of arithmetic concepts of percentage change
Solution:
A new og 2021 question
St (1):- The population of Town C in 2000 was 2/3 of the population in 2005.
There is no information about the population from 2000-2005. No information is provided about the population growth from 2000-2010.
(Insufficient)
St(2):- The population of Town C increased by a greater number of people from 2005 to 2010 than it did from 2000 to 2005.
There is no information provided about the population growth either in percentage or absolute figures. (Insufficient)
Combining both ;
Let the population in 2005 =60
=> Population in 2000 = (2/3) *60 = 40
A 100% increase in 40 would mean a population of 80 in 2010
Increase from 2000-2005 = 60-40=20
Increase in number of people from 2005-2010 should be greater than 20 (St 2)
=>Minimum value of the pop then in 2010 would be 60+21=81 and 81>80(100% increase) (Sufficient)option (c)