**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)**