291: The stones formed in human kidney consist mostly of
(a) calcium oxalate
(b) sodium acetate
(c) magnesium sulphate
(d) calcium
292: 50 men or 80 women can finish a job in , 50 days. A contractor deploys 40 men and 48 women for this work, but after every duration of 10 days, 5 men and 8 women are removed till the work is completed. The work is completed in:
(a) 45 days
(b) 50 days
(c) 54 days
(d) 62 days
293: Who among the following leaders did not believe in the drain theory of Dadabhai Naoroji ?
(a) B.G. Tilak
(b) R.C. Dutt
(c) M.G. Ranade
(d) Sir Syed Ahmed Khan
294: In the year 2001, in which one of the following events of Women's Singles did Venus Williams defeat Serena Williams to win the title?
(a) Australian Open 2001
(b) French Open 2001
(c) Wimbledon 2001
(d) US Open 2001
295: Who is regarded as the greatest lawgiver of ancient India?
(a) Megasthanese
(b) Panini
(c) Manu
(d) Kautilya