2146: Ten Identical particles are moving randomly inside a closed box. What is the probability that at any given point of time all the ten particles will be lying in the same half of the box?
(A) 2/11
(B) 2/9
(C) 1/5
(D) 1/2
2147: The release of which one of the following into ponds and wells helps in controlling the mosquitoes?
(a) Gambusia fish
(b) Snail
(c) Crab
(d) Dogfish
2148: Consider the following statements:
1. North Atlantic Co-operation Council(NACC) is the name of the new organization which has repeated the North Atlantic Treaty Organization (NATO).
2. The United States of America and the United Kingdom became the members of the NATO when it was formed in the year 1949.
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
2149: When Leander Paes won the "mixed doubles" at the US Open in the year 2008, who of the following was his partner?
(A) Ana Ivanovic
(B) Dinara Safina
(C) Cara Black
(D) Jelena Jankovic
2150: What was the important reason for the fall of Vijayanagar Empire?
(a) Unity among the Muslim rulers
(b) Internal instability and weakness of Princes
(c) Moplah's rebellion
(d) Economic bankruptcy