4586: In a class there are 18 boys who are over 160 cm tall. If these boys constitute three-fourths of the boys and the total number of boys is two-third of the number of students in the class, then what is the number of girls in the class?
(a) 6
(b) 12
(c) 18
(d) 24
4587: M.C. Setalvad, B.N. Rao and Alladi Krishnaswamy Iyer were distinguished members of the
(a) Swaraj Party
(b) All-India National Liberal Federation
(c) Madras Labour Union
(d) Servants of India Society
4588: In the context of India, which one of the following is the correct relationship between Rights and Duties?
(a) Rights are correlative with Duties.
(b) Rights are personal and hence independent of society and Duties.
(c) Rights, not Duties, are important for the advancement of the personality of the citizen.
(d) Duties, not Rights, are important for the stability of the State.
4589: Deficit financing means
(a) An excess of government's current expenditure over its current revenue
(b) An excess of government expenditures minus borrowings other than those from the RBI
(c) An excess of government's total expenditure over its total revenue
(d) An excess of government revenue over expenditure
4590: With reference to 'fuel cells' in which hydrogen-rich fuel and oxygen are used to generate electricity. Consider the following statements :
1. If pure hydrogen is used as a fuel, the fuel cell emits heat and water as by-products.
2. Fuel cells can be used for powering buildings and not for small devices like laptop computers.
3. Fuel cells produce electricity in the form of Alternating Current (AC).
Which of the statements given above is / are correct?
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3