Q. Study the following pie-chart and the table and answer the questions based on them. Proportion of Population of Seven Villages in 1997. 
(a) If the population of village R in 1997 is 32000, then what will be the population of village Y below poverty line in that year? 8
(b) What is the ratio of population of village T below poverty line to that of village Z below poverty line in 1997? 10
(c) Find the population of village S if the population of village X below poverty line in 1997 is 12160. 8
(d) If in 1998, the population of villages Y and V increase by 10% each and the percentage of population below poverty line remains unchanged for all the villages, then find the population of village V below poverty line in 1998, given that the population of village Y in 1997 was 30000. 10
Ans:
(a) If the population of village R in 1997 is 32000, then what will be the population of village Y below poverty line in that year?
Ans:
Population of village R = 32000 (given).
Let the population of village Y be y.
Then, 16 : 15 = 32000 : y => y =(15*32000)/16 = 30000
Therefore, Population of village Y below poverty line = 52% of 30000 = 15600.
(b) What is the ratio of population of village T below poverty line to that of village Z below poverty line in 1997?
Ans:
(c) Find the population of village S if the population of village X below poverty line in 1997 is 12160.
Ans:
(d) If in 1998, the population of villages Y and V increase by 10% each and the percentage of population below poverty line remains unchanged for all the villages, then find the population of village V below poverty line in 1998, given that the population of village Y in 1997 was 30000.
Ans:
