1546: 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
1547: Blood grouping was discovered by:
(a) Landsteiner
(b) Robert Koch
(c) William Harvey
(d) Louis Pasteur
1548: How many natural numbers are there between 43 and 200 which are exactly divisible by 6?
1549: Indian cotton merchant, banker, Congressman and a close associate of Mahatma Gandhi'. This description fits
(a) G.D. Birla
(b) M.R. Jayakar
(c) Jamnalal Bajaj
(d) V.S. Srinivasa Sastri
1550: The head of the military department under the reorganised central machinery of administration during Akbar's reign was
(a) Diwan
(b) Mir Bakshi
(c) Mir Saman
(d) Bakshi