Practice Test: Table Charts - 1

Let the total population of state R be x million.
Then, the population of state R above poverty line is:

= [(100 - 24)% of x] million
= (76 / 100) * x million

So male populaion of state R above poverty line is:

= [2 / 5 * (76 / 100) * x] million

But, it is given that male population of state R above poverty line = 1.9 million.
∴ (2 / 5) * (76 / 100) * x) = 1.9 
⇒ x = 5 * 100 * 1.9 / (76 * 2) = 6.25
∴ Total population of state R = 6.25 million.

Total population of state S = 7 million
Population above poverty line is: 

= [(100 - 19)% of 7] million
= (81% of 7) million
= 5.67 million

So the number of females above the poverty line in the state of S is:

= (3 / 7) * 5.67 million
= 2.43 million

Female population below poverty line for state P = 2.1 million
Let the male population below poverty line for state P be 'x' million.

5 : 6 = x : 21 
x = 2.1 * (5 / 6) = 1.75

∴ Population below poverty line for state P = (2.1 + 1.75) million = 3.85 million
Let the population above poverty line for state P be 'y' million
Since, 35% of the total population of state P is below poverty line.
Therefore, 65% of the total population of state P is above poverty line i.e., the ratio of population below poverty line to that above poverty line of state P is 35 : 65

35 : 65 = 3.85 : y 
y = 65 * 3.85 / 35 = 7.15

∴ Population above poverty line for state P = 7.15 million and so, male population above poverty line for state P is:

= (6 / 13) * 7.15 million 
= 3.3 million

For state Q:
Male population below poverty line = 2.4 million
Let the female population below the poverty line be 'x' million.

3 : 5 = 2.4 : x 
x = 5 * 2.4 / 3 = 4

∴ Total population below poverty line = (2.4 + 4) = 6.4 million
If N_q = 6.4 million ⇒ N_q = (6.4 x 100 / 25) million = 25.6 million
For state T:
Male population below poverty line = 6 million
Let the female population below the poverty line be 'y' million.

3 : 5 = 6 : y  
y = 3 * 6 / 5 = 3.6

∴ Total population below poverty line = (2.4 + 4) = 6.4 million
If N_t = 6.4 million ⇒ N_t = (9.6 x 100 / 15) million = 64 million
Required ratio is:

= N_q / N_t = 25.6 / 64 = 0.4 = 2 / 5

Required difference is: 

= (272 + 240 + 236 + 256 + 288) - (200 + 224 + 248 + 272 + 260)
= 88