1946: A bag contains 20 balls, 8 balls are green, 7 are white and 5 are red. What is the minimum number of balls that must be picked up from the bag blind folded (without replacing any of it) to be assured of picking at least one ball of each colour ?
(a) 4
(b) 7
(c) 11
(d) 16
1947: He wrote biographies of Mazzini, Garibaldi, Shivaji and Shrikrishna; stayed in America for some time; and was also elected to the Central Assembly. He was
(a) Aurobindo Ghosh
(b) Bipin Chandra Pal
(c) Lala Lajpat Rai
(d) Motilal Nehru
1948: During a flight from Delhi to Tokyo the following are the landing airports :
I. Hong Kong
II. Hanoi
III. Taipei
IV Bangkok
The correct sequence of the landing at these airports during an onward journey is
(a) I, II, III, IV
(b) IV, II, I, III
(c) III, IV, I, II
(d) IV, I, II , III
1949: An accurate clock shows the time as 3.00. After hour hand has moved 135°, the time would be
(a) 7.30
(b) 6.30
(c) 8.00
(d) 9.30
1950: Assertion (A)
Most of the hot deserts are present on the western margin of the continents close to the zones of trade winds.
Reason (R)
Zones of trade winds are characterised by seas having reversal of planetary wind direction.
(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 the correct explanation of A
(c) A is true but R is false
(d) A is false but R is true