161: A married couple adopted a male child. A few years later twin boys were born to them. The blood group of the couple is 'AB' positive and 'O' negative. The blood group of the three sons is A positive, B positive, and 'O' positive. The blood group of the adopted son is
(a) A positive
(b) B positive
(c) O positive
(d) Cannot be determined
162: The growth rate of per capita income at current prices is higher than that of per capita income at constant prices, because the latter takes into account the rate of
(a) growth of population
(b) increase in price level
(c) growth of money supply
(d) increase in the wage rate
163: Which one of the following statements correctly describes the meaning of legal tender money ?
(a) The money which is tendered in courts of law to defray the fee of legal cases
(b) The money which a creditor is under compulsion to accept in settlement of his claims
(c) The bank money in the form of cheques, drafts, bills of exchange, etc.
(d) The metallic money in circulation in a country
164: Which of the following have coral reefs?
1. Andaman and Nicobar Islands
2. Gulf of Kachchh
3. Gulf of Mannar
4. Sunderbans
Select the correct answer using the code given below.
(a) 1, 2 and 3 only
(b) 2 and 4 only
(c) 1 and 3 only
(d) 1, 2, 3 and 4
165: What is the correct order of the following
A. Fisrt Battle of Panipat
B. Second Battle of Tarain
C. Establishment of East India Company
(a) B, A, C
(b) A, B, C
(c) C, A, B
(d) C, B, A