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Answer the question based on the following information.

The table below presents data on percentage population covered by drinking water and sanitation facilities in selected Asian countries.

 Drinking water Sanitation facility Urban Rural Total Urban Rural Total India 85 79 81 70 14 29 Bangladesh 99 96 97 79 44 48 China 97 56 67 74 7 24 Pakistan 82 69 74 77 22 47 Philippines 92 80 86 88 66 77 Indinesia 79 54 62 73 40 51 Sri Lanka 88 52 57 68 62 63 Nepal 88 60 63 58 12 1

Country A is said to dominate B or A > B if A has higher percentage in total coverage for both drinking water and sanitation facilities, and, B is said to be dominated by A, or B < A.

A country is said to be on the coverage frontier if no other country dominates it. Similarly, a country is not on the coverage frontier if it is dominated by at least one other country.

Using only the data presented under ‘sanitation facilities’ columns, it can be concluded that rural population in India, as a percentage of its total population is approximately

1. $76$
2. $70$
3. $73$
4. Cannot be determined

Two equations :

Rural Population = R

Urban Population = U

Total Population = T

Therefore : U + R = T

From the data in sanitation table :
Urban Population with Sanitation + Rural Population with Sanitation = Total Population with Sanitation

Therefore : 0.7*U + 0.14*R = 0.29*T

0.7*(T – R) + 0.14*R = 0.29*T

0.7*T – 0.7*R + 0.14*R = 0.29*T

0.56*R = 0.41*T

R = 0.73 *T

Rural Population is 73 % of Total Population
182 points