3741: How many numbers are there in all 6000 to 6999 (Both 6000 and 6999 included) having at least one of their digits repeated ?
(a) 216
(b) 356
(c) 496
(d) 504
3742: What was the purpose of the Operation Sukoon launched by the Government of India ?
(A) Providing a relief package to farmers after a spate of suicides by other farmers in Andhra Pradesh
(B) Assisting United Nations in its efforts to help the civil war vitims in the Darfur refion of North Africa
(C) Helping Indonesia in its efforts to rehabilitate the victims of earthquake in that country
(D) Evacuating the Indian Nations from Lebanon during the conflict in the Middle East.
3743: In the given figure, angle OQP = 30° and angle ORP = 20°, angle QOR is equal to
(a) 100°
(b) 120°
(c) 130°
(d) 140°
3744: Hybridisation is useful in developing improved crops by:
(a) Creating new and better genes
(b) Eliminating undesirable genes
(c) Producing favourable combination of genes
(d) By encouraging favourable genes and removing unfavourable ones
3745: The known forces of natures can be divided into four classes, viz., gravity, electromagnetism, week nuclear force and strong nuclear force. With reference to them, which one of the following statements is not correct?
(a) Gravity is the strongest of the four
(b) Electromagnetism act only on particles with an electric charge
(c) Weak nuclear force causes radioactivity
(d) Strong nuclear force holds protons and neutrons inside the nuclear of an atom.