3186: A rectangular plot of lawn shown in the figure has dimensions x and y and is surrounded by a gravel pathway of width 2 m. What is the total area of the pathway ?
(a) 2x + 2y + 4
(b) 2x + 2y + 8
(c) 4x+ 4y + 8
(d) 4x + 4y + 16
3187: With reference to food chains. In ecosystems, consider the following statements:
1. A food chain illustrates the order in which a chain of organisms feed upon each other.
2. Food chains are found within the populations of a species.
3. A food chain illustrates the numbers of each organism which are eaten by others.
Which of the statements given above is/are correct?
(a) 1 only
(b) 1 and 2 only
(c) 1, 2 and 3
(d) None
3188: Consider the following statements:
1. Reserve Bank of India was nationalised on 26 January, 1950.
2. The borrowing programme of the Government of India is handled by the Department of Expenditure, Ministry of Finance.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
3189: Which one of the Chola kings conquered Ceylon ?
(a) Aditya I
(b) Rajaraja I
(c) Rajendra
(d) Vijayalaya
3190: The mind of the makers of the Constitution of India is reflected in which of the following?
(a) The Preamble
(b) The Fundamental Rights
(c) The Directive Principles of State Policy
(d) The Fundamental Duties