1921: A square is divided into 9 identical smaller squares. Six identical balls are to be placed in these smaller squares such that each of the three rows get at least one ball (one ball in one square only). In how many different ways can this be done?
(A) 81
(B) 36
(C) 54
(D) 27
1922: Assertion (A)
Red phosphorous is preferred to white phosphorous in the manufacture of matches.
Reason (R)
Red phosphorous is non-poisonous in nature.
(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true but R is NOT a correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
1923: India is a member of which of the following?
1. Asian Development Bank
2. Asia-Pacific Economic Cooperation
3. Colombo Plan
4. Organization for Economic Cooperation and Development (OECD)
Select the correct answer using the code given below:
(a) 1 and 3 only
(b) 1, 2 and 3 only
(c) 2 and 4 only
(d) 1, 2, 3 and 4
1924: Which of the following is a perception without stimuli?
(a) Hallucination
(b) Illusion
(c) Claustrophobia
(d) None of these
1925: The average speed of a train in the onward journey is 25% more than that of the return journey. The train halts for one hour on reaching the destination. The total time taken for the complete to and fro journey is 17 hours covering a distance of 800 km. The speed of the train in the onward journey is
(a) 45 km per hour
(b) 47.06 km per hour
(c) 50.00 km per hour
(d) 56.25 km per hour