Scarcity is the condition of not having enough goods and services to satisfy everyone's

Scarcity is the condition of not having enough goods and services to satisfy everyone's needs. This is an economic concept whereby certain conditions in a society such as war, drought, or political instability have led to scarcity of certain goods and services that are preventing the needs of the society's people from being met. 

12 days because 1/4 is 25% of 100 if 100 is equal to 1 pound then multiply 3 by 4 which equals 12