Data Interpretation - Pie Charts
Exercise : Pie Charts - Pie Chart 7
Directions to Solve
Study the following pie-chart and the table and answer the questions based on them.
Proportion of Population of Seven Villages in 1997
|Village||% Population Below Poverty Line|
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?
The ratio of population of village T below poverty line to that of village Z below poverty line in 1997 is:
Let N be the total population of all the seven villages.
Then, population of village T below poverty line = 46% of (21% of N)
and Population of villages Z below the poverty line = 42% of (11% of N)
|Required ratio =||46% of (21% of N)||=||46 x 21||= 23/11.|
|42% of (11 % of N)||42 x 11|
Find the population of village S if the population of village X below poverty line in 1997 is 12160.
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.
Population of village Y in 1997 = 30000 (given).
Let the population of village V in 1997 be v.
|Then, 15 : 10 = 30000 : v v =||30000 x 10||= 20000.|
Now, population of village V in 1998 = 20000 + (10% of 20000) = 22000.
Population of village V below poverty line in 1998 = 58% of 22000 = 12760.