341: A boy carved his initials on the-bark of a tree at a height of 2.5 m above the ground when the tree was 5 m tall. In 10 years the tree attained a height of 15 m. The initials carved by the boy 10 years ago will now be found:
(a) At 2.5 m above the ground
(b) At 7.5 m above the ground
(c) At 12.5 m above the ground
(d) At 15.0 m above the ground
342: India's external debt increased from US $98,158 million as at the end of March 2000 to US $100,225 million as at the end of March 2001 due to increase in
(a) multilateral and bilateral debt
(b) rupee debt
(c) commercial borrowings and NRI deposits
(d) borrowing from International Monetary Fund
343: The name Pahlavi Dynasty in Iran is derived from the:
(a) Language
(b) King
(c) Religion
(d) River
344: Which one of the following statements is correct with reference to our solar system ?
(a) The Earth is the densest of all the planets in our solar system
(b) The predominant element in the composition of Earth is silicon
(c) The Sun contains 75 per cent of the mass of the solar system
(d) The diameter of the Sun is 190 times that of the Earth
345: Mixed economy means:
(a) Coexistence of small and large scale industries
(b) Coexistence of private and public sectors
(c) Promotion of agriculture as well as industries
(d) Coexistence of rich and poor