1841: In a carrom board game competition, m boys and n girls(m > n > 1) of a school participate in which every student has to play exactly one game with every other student. Out of the total games played; it was found that in 221 games one player was a boy and the other player was a girl.
Consider the following statements:
1. The total number of students that participated in the competition is 30.
2. The number of games in which both players were girls is 78.
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
1842: With reference to bio-toilets used by the Indian Railways, consider the following statements:
1.The decomposition of human waste in the bio-toilets is initiated by a fungal inoculum.
2. Ammonia and water vapour are the only end products in this decomposition which are released into the atmosphere.
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
1843: Which one of the following cities (they were in the news in recent times) is not correctly matched with its country?
(a) Salamanca : Spain
(b) Cannes : Italy
(c) Cancun : Mexico
(d) Bruges : Belgium
1844: Consider the following diseases :
1. Diphtheria
2. Chickenpox
3. Smallpox
Which of the above diseases has/ havebeen eradicated in India?
(a) 1 and 2 only
(b) 3 only
(c) 1, 2 and 3
(d) None
1845: Fawazil in the Sultanate period meant
(a) extra payment made to the nobles
(b) revenue assigned in lieu of salary
(c) excess amount paid to the exchequer by the iqtadars
(d) illegal exactions extracted from the peasants