AP Police Constable Prelims 2019 (Paper 2) Previous Year Paper (..

Read the following passage and answer the questions.

Two hundred years after Malthus predicted that population growth would overtake food production by a margin of 256 to 9, the simple fact is that food production had always been ahead of the population growth. Malthus doomsday prediction simply did not come true due to two major reasons; first population did not grow geometrically and birth rates in all western countries fell during 20th century, resulting in very slow population growth. Over the past quarter-century, birth rates have been falling in the developing countries too. Second, modern agricultural practices and better irrigation have resulted in tremendous growth in food production in almost all parts of the globe, with notable exception of Sub-Saharan Africa. Therefore, at the global level, the Malthusian doomsday never befell on us.

India's population grew by about two and a half times in the past 45 years from 361 million in 1951 to an estimated 916 million in 1995. But during the same period, India's food grain production grew by nearly four times from 51 million tonnes in 1951 to 191 million tonnes in 1995

Read the following passage and answer the questions.

Two hundred years after Malthus predicted that population growth would overtake food production by a margin of 256 to 9, the simple fact is that food production had always been ahead of the population growth. Malthus doomsday prediction simply did not come true due to two major reasons; first population did not grow geometrically and birth rates in all western countries fell during 20th century, resulting in very slow population growth. Over the past quarter-century, birth rates have been falling in the developing countries too. Second, modern agricultural practices and better irrigation have resulted in tremendous growth in food production in almost all parts of the globe, with notable exception of Sub-Saharan Africa. Therefore, at the global level, the Malthusian doomsday never befell on us.

India's population grew by about two and a half times in the past 45 years from 361 million in 1951 to an estimated 916 million in 1995. But during the same period, India's food grain production grew by nearly four times from 51 million tonnes in 1951 to 191 million tonnes in 1995

A right circular solid cylinder has radius 7 cm and height 24 cm. A conical cavity of same dimensions is carved out of the cylinder. Then the sum of the areas, in square centimeters, of the inner and the outer surfaces of the remaining solid is

The radius, in centimeters, of the greatest sphere that can be carved out of a soild cone is radius 9 cm and height 40 cm, is

The frustrum of a right circular cone has height 12 cm, radius of the base 8 cm and the radius of the top 3 cm. Then the ratio of the volume of the frustum to its total surface/area is