Data Interpretation - Pie Charts
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 |
X | 38 |
Y | 52 |
Z | 42 |
R | 51 |
S | 49 |
T | 46 |
V | 58 |
Population of village R = 32000 (given).
Let the population of village Y be y.
Then, 16 : 15 = 32000 : y ![]() |
![]() |
15 x 32000 | ![]() |
= 30000. |
16 |
Population of village Y below poverty line = 52% of 30000 = 15600.
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)
![]() |
46% of (21% of N) | = | 46 x 21 | = 23/11. |
42% of (11 % of N) | 42 x 11 |
Let the population of village X be x.
Then, 38% of x = 12160 ![]() |
12160 x 100 | = 32000. |
38 |
Now, if s be the population of village S, then
16 : 11 = 32000 : s ![]() |
![]() |
11 x 3200 | ![]() |
= 22000. |
16 |
Population of village Y in 1997 = 30000 (given).
Let the population of village V in 1997 be v.
Then, 15 : 10 = 30000 : v ![]() |
30000 x 10 | = 20000. |
15 |
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.